31057541 has 16 divisors (see below), whose sum is σ = 33324480. Its totient is φ = 28897920.

The previous prime is 31057519. The next prime is 31057549. The reversal of 31057541 is 14575013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31057541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31057541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31057549) 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, 89330 + ... + 89676.

It is an arithmetic number, because the mean of its divisors is an integer number (2082780).

Almost surely, 2^31057541 is an apocalyptic number.

It is an amenable number.

31057541 is a deficient number, since it is larger than the sum of its proper divisors (2266939).

31057541 is a wasteful number, since it uses less digits than its factorization.

31057541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 31057541 is about 5572.9293015433. The cubic root of 31057541 is about 314.3323087451.

The spelling of 31057541 in words is "thirty-one million, fifty-seven thousand, five hundred forty-one".