1522542140 has 48 divisors (see below), whose sum is σ = 3656318400. Its totient is φ = 521697792.

The previous prime is 1522542139. The next prime is 1522542157. The reversal of 1522542140 is 412452251.

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, 447566 + ... + 450954.

It is an arithmetic number, because the mean of its divisors is an integer number (76173300).

Almost surely, 2^1522542140 is an apocalyptic number.

1522542140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1522542140 is an abundant number, since it is smaller than the sum of its proper divisors (2133776260).

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

1522542140 is a wasteful number, since it uses less digits than its factorization.

1522542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614 (or 6612 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1522542140 is about 39019.7660167254. The cubic root of 1522542140 is about 1150.4200456745.

Adding to 1522542140 its reverse (412452251), we get a palindrome (1934994391).

The spelling of 1522542140 in words is "one billion, five hundred twenty-two million, five hundred forty-two thousand, one hundred forty".