31052643 has 16 divisors (see below), whose sum is σ = 42086400. Its totient is φ = 20363616.

The previous prime is 31052639. The next prime is 31052653. The reversal of 31052643 is 34625013.

It is a happy number.

It is not a de Polignac number, because 31052643 - 2² = 31052639 is a prime.

It is a super-3 number, since 3×31052643³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31052603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56496 + ... + 57042.

It is an arithmetic number, because the mean of its divisors is an integer number (2630400).

Almost surely, 2^31052643 is an apocalyptic number.

31052643 is a deficient number, since it is larger than the sum of its proper divisors (11033757).

31052643 is a wasteful number, since it uses less digits than its factorization.

31052643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 31052643 is about 5572.4898384833. The cubic root of 31052643 is about 314.3157837129.

Adding to 31052643 its reverse (34625013), we get a palindrome (65677656).

The spelling of 31052643 in words is "thirty-one million, fifty-two thousand, six hundred forty-three".