31470532 has 12 divisors (see below), whose sum is σ = 57468096. Its totient is φ = 15051080.

The previous prime is 31470469. The next prime is 31470547. The reversal of 31470532 is 23507413.

It is a junction number, because it is equal to n+sod(n) for n = 31470497 and 31470506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170944 + ... + 171127.

It is an arithmetic number, because the mean of its divisors is an integer number (4789008).

Almost surely, 2^31470532 is an apocalyptic number.

It is an amenable number.

31470532 is a deficient number, since it is larger than the sum of its proper divisors (25997564).

31470532 is a wasteful number, since it uses less digits than its factorization.

31470532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342098 (or 342096 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 31470532 is about 5609.8602478137. The cubic root of 31470532 is about 315.7194674193.

Adding to 31470532 its reverse (23507413), we get a palindrome (54977945).

The spelling of 31470532 in words is "thirty-one million, four hundred seventy thousand, five hundred thirty-two".