1525641132 has 24 divisors (see below), whose sum is σ = 3769231536. Its totient is φ = 478632448.

The previous prime is 1525641107. The next prime is 1525641151. The reversal of 1525641132 is 2311465251.

It is a self number, because there is not a number n which added to its sum of digits gives 1525641132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3739113 + ... + 3739520.

It is an arithmetic number, because the mean of its divisors is an integer number (157051314).

Almost surely, 2^1525641132 is an apocalyptic number.

1525641132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1525641132 is an abundant number, since it is smaller than the sum of its proper divisors (2243590404).

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

1525641132 is a wasteful number, since it uses less digits than its factorization.

1525641132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478657 (or 7478655 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 1525641132 is about 39059.4563710249. The cubic root of 1525641132 is about 1151.2000408151.

The spelling of 1525641132 in words is "one billion, five hundred twenty-five million, six hundred forty-one thousand, one hundred thirty-two".