31225341 has 16 divisors (see below), whose sum is σ = 50086400. Its totient is φ = 16903728.

The previous prime is 31225331. The next prime is 31225349. The reversal of 31225341 is 14352213.

It is not a de Polignac number, because 31225341 - 2⁵ = 31225309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31225349) 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, 38731 + ... + 39528.

It is an arithmetic number, because the mean of its divisors is an integer number (3130400).

Almost surely, 2^31225341 is an apocalyptic number.

It is an amenable number.

31225341 is a deficient number, since it is larger than the sum of its proper divisors (18861059).

31225341 is a wasteful number, since it uses less digits than its factorization.

31225341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78288.

The product of its digits is 720, while the sum is 21.

The square root of 31225341 is about 5587.9639404706. The cubic root of 31225341 is about 314.8973916240.

Adding to 31225341 its reverse (14352213), we get a palindrome (45577554).

The spelling of 31225341 in words is "thirty-one million, two hundred twenty-five thousand, three hundred forty-one".