31790541 has 4 divisors (see below), whose sum is σ = 42387392. Its totient is φ = 21193692.

The previous prime is 31790537. The next prime is 31790587. The reversal of 31790541 is 14509713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31790541 - 2² = 31790537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31790499 and 31790508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31790041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5298421 + ... + 5298426.

It is an arithmetic number, because the mean of its divisors is an integer number (10596848).

Almost surely, 2^31790541 is an apocalyptic number.

It is an amenable number.

31790541 is a deficient number, since it is larger than the sum of its proper divisors (10596851).

31790541 is a wasteful number, since it uses less digits than its factorization.

31790541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596850.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 31790541 is about 5638.3101191758. The cubic root of 31790541 is about 316.7859946715.

The spelling of 31790541 in words is "thirty-one million, seven hundred ninety thousand, five hundred forty-one".