240555131 has 2 divisors, whose sum is σ = 240555132. Its totient is φ = 240555130.

The previous prime is 240555113. The next prime is 240555179. The reversal of 240555131 is 131555042.

Together with previous prime (240555113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240555131 - 2¹⁴ = 240538747 is a prime.

It is a super-2 number, since 2×240555131² = 115733542100854322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240555131.

It is not a weakly prime, because it can be changed into another prime (240555031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120277565 + 120277566.

It is an arithmetic number, because the mean of its divisors is an integer number (120277566).

Almost surely, 2^240555131 is an apocalyptic number.

240555131 is a deficient number, since it is larger than the sum of its proper divisors (1).

240555131 is an equidigital number, since it uses as much as digits as its factorization.

240555131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 240555131 is about 15509.8398121966. The cubic root of 240555131 is about 621.9252769836.

The spelling of 240555131 in words is "two hundred forty million, five hundred fifty-five thousand, one hundred thirty-one".