631092241 has 16 divisors (see below), whose sum is σ = 721529424. Its totient is φ = 546822144.

The previous prime is 631092127. The next prime is 631092257. The reversal of 631092241 is 142290136.

It can be written as a sum of positive squares in 8 ways, for example, as 32262400 + 598829841 = 5680^2 + 24471^2 .

It is a cyclic number.

It is not a de Polignac number, because 631092241 - 2¹³ = 631084049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631012241) 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, 84141 + ... + 91333.

It is an arithmetic number, because the mean of its divisors is an integer number (45095589).

Almost surely, 2^631092241 is an apocalyptic number.

It is an amenable number.

631092241 is a deficient number, since it is larger than the sum of its proper divisors (90437183).

631092241 is a wasteful number, since it uses less digits than its factorization.

631092241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 631092241 is about 25121.5493351823. The cubic root of 631092241 is about 857.7570183841.

The spelling of 631092241 in words is "six hundred thirty-one million, ninety-two thousand, two hundred forty-one".