61246531 has 2 divisors, whose sum is σ = 61246532. Its totient is φ = 61246530.

The previous prime is 61246511. The next prime is 61246589. The reversal of 61246531 is 13564216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61246531 - 2⁷ = 61246403 is a prime.

It is a super-2 number, since 2×61246531² = 7502275119067922, 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 61246531.

It is not a weakly prime, because it can be changed into another prime (61246511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30623265 + 30623266.

It is an arithmetic number, because the mean of its divisors is an integer number (30623266).

Almost surely, 2^61246531 is an apocalyptic number.

61246531 is a deficient number, since it is larger than the sum of its proper divisors (1).

61246531 is an equidigital number, since it uses as much as digits as its factorization.

61246531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 61246531 is about 7826.0162918307. The cubic root of 61246531 is about 394.1793161978.

The spelling of 61246531 in words is "sixty-one million, two hundred forty-six thousand, five hundred thirty-one".