240626531 has 2 divisors, whose sum is σ = 240626532. Its totient is φ = 240626530.

The previous prime is 240626513. The next prime is 240626537. The reversal of 240626531 is 135626042.

Together with previous prime (240626513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240626531 - 2⁶ = 240626467 is a prime.

It is a super-2 number, since 2×240626531² = 115802254842187922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240626494 and 240626503.

It is not a weakly prime, because it can be changed into another prime (240626537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120313265 + 120313266.

It is an arithmetic number, because the mean of its divisors is an integer number (120313266).

Almost surely, 2^240626531 is an apocalyptic number.

240626531 is a deficient number, since it is larger than the sum of its proper divisors (1).

240626531 is an equidigital number, since it uses as much as digits as its factorization.

240626531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 240626531 is about 15512.1414060084. The cubic root of 240626531 is about 621.9868028272.

The spelling of 240626531 in words is "two hundred forty million, six hundred twenty-six thousand, five hundred thirty-one".