1631523652 has 12 divisors (see below), whose sum is σ = 3114727056. Its totient is φ = 741601640.

The previous prime is 1631523631. The next prime is 1631523689. The reversal of 1631523652 is 2563251361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18539998 + ... + 18540085.

It is an arithmetic number, because the mean of its divisors is an integer number (259560588).

Almost surely, 2^1631523652 is an apocalyptic number.

It is an amenable number.

1631523652 is a deficient number, since it is larger than the sum of its proper divisors (1483203404).

1631523652 is a wasteful number, since it uses less digits than its factorization.

1631523652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37080098 (or 37080096 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 1631523652 is about 40392.1236381550. The cubic root of 1631523652 is about 1177.2385036645.

The spelling of 1631523652 in words is "one billion, six hundred thirty-one million, five hundred twenty-three thousand, six hundred fifty-two".