240961631 has 2 divisors, whose sum is σ = 240961632. Its totient is φ = 240961630.

The previous prime is 240961619. The next prime is 240961661. The reversal of 240961631 is 136169042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240961631 - 2¹⁴ = 240945247 is a prime.

It is a super-2 number, since 2×240961631² = 116125015228360322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240961661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120480815 + 120480816.

It is an arithmetic number, because the mean of its divisors is an integer number (120480816).

Almost surely, 2^240961631 is an apocalyptic number.

240961631 is a deficient number, since it is larger than the sum of its proper divisors (1).

240961631 is an equidigital number, since it uses as much as digits as its factorization.

240961631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 240961631 is about 15522.9388647897. The cubic root of 240961631 is about 622.2753981847.

The spelling of 240961631 in words is "two hundred forty million, nine hundred sixty-one thousand, six hundred thirty-one".