1522140 has 48 divisors (see below), whose sum is σ = 4451328. Its totient is φ = 387904.

The previous prime is 1522127. The next prime is 1522153. The reversal of 1522140 is 412251.

It is an interprime number because it is at equal distance from previous prime (1522127) and next prime (1522153).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829 + ... + 1931.

It is an arithmetic number, because the mean of its divisors is an integer number (92736).

2^1522140 is an apocalyptic number.

1522140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1522140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2225664).

1522140 is an abundant number, since it is smaller than the sum of its proper divisors (2929188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1522140 is a wasteful number, since it uses less digits than its factorization.

1522140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1522140 is about 1233.7503799392. The cubic root of 1522140 is about 115.0318752221.

Adding to 1522140 its reverse (412251), we get a palindrome (1934391).

It can be divided in two parts, 15 and 22140, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 1522140 in words is "one million, five hundred twenty-two thousand, one hundred forty".