31617053 has 8 divisors (see below), whose sum is σ = 34401528. Its totient is φ = 28882944.

The previous prime is 31617049. The next prime is 31617073. The reversal of 31617053 is 35071613.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 458329 + 31158724 = 677^2 + 5582^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31617053 - 2² = 31617049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31617013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11276 + ... + 13797.

It is an arithmetic number, because the mean of its divisors is an integer number (4300191).

Almost surely, 2^31617053 is an apocalyptic number.

It is an amenable number.

31617053 is a deficient number, since it is larger than the sum of its proper divisors (2784475).

31617053 is a wasteful number, since it uses less digits than its factorization.

31617053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25183.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 31617053 is about 5622.9043207225. The cubic root of 31617053 is about 316.2086861934.

Adding to 31617053 its reverse (35071613), we get a palindrome (66688666).

The spelling of 31617053 in words is "thirty-one million, six hundred seventeen thousand, fifty-three".