1523252140 has 48 divisors (see below), whose sum is σ = 3273177600. Its totient is φ = 595189952.

The previous prime is 1523252111. The next prime is 1523252161. The reversal of 1523252140 is 412523251.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618231 + ... + 620689.

It is an arithmetic number, because the mean of its divisors is an integer number (68191200).

Almost surely, 2^1523252140 is an apocalyptic number.

1523252140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523252140 is an abundant number, since it is smaller than the sum of its proper divisors (1749925460).

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

1523252140 is a wasteful number, since it uses less digits than its factorization.

1523252140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1523252140 is about 39028.8629093905. The cubic root of 1523252140 is about 1150.5988412295.

Adding to 1523252140 its reverse (412523251), we get a palindrome (1935775391).

The spelling of 1523252140 in words is "one billion, five hundred twenty-three million, two hundred fifty-two thousand, one hundred forty".