245233531 has 2 divisors, whose sum is σ = 245233532. Its totient is φ = 245233530.

The previous prime is 245233523. The next prime is 245233579. The reversal of 245233531 is 135332542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245233531 - 2³ = 245233523 is a prime.

It is a super-2 number, since 2×245233531² = 120278969453455922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245233531.

It is not a weakly prime, because it can be changed into another prime (245233501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122616765 + 122616766.

It is an arithmetic number, because the mean of its divisors is an integer number (122616766).

Almost surely, 2^245233531 is an apocalyptic number.

245233531 is a deficient number, since it is larger than the sum of its proper divisors (1).

245233531 is an equidigital number, since it uses as much as digits as its factorization.

245233531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 28.

The square root of 245233531 is about 15659.9339398351. The cubic root of 245233531 is about 625.9312249431.

The spelling of 245233531 in words is "two hundred forty-five million, two hundred thirty-three thousand, five hundred thirty-one".