1901124 has 48 divisors (see below), whose sum is σ = 5107200. Its totient is φ = 610848.

The previous prime is 1901117. The next prime is 1901131. The reversal of 1901124 is 4211091.

It is an interprime number because it is at equal distance from previous prime (1901117) and next prime (1901131).

It is a super-2 number, since 2×1901124² = 7228544926752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1901097 and 1901106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2829 + ... + 3435.

It is an arithmetic number, because the mean of its divisors is an integer number (106400).

2^1901124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1901124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2553600).

1901124 is an abundant number, since it is smaller than the sum of its proper divisors (3206076).

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

1901124 is a wasteful number, since it uses less digits than its factorization.

1901124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1901124 is about 1378.8125325801. The cubic root of 1901124 is about 123.8806517284.

It can be divided in two parts, 1901 and 124, that added together give a square (2025 = 45²).

The spelling of 1901124 in words is "one million, nine hundred one thousand, one hundred twenty-four".