61300431 has 12 divisors (see below), whose sum is σ = 88863840. Its totient is φ = 40719840.

The previous prime is 61300427. The next prime is 61300433. The reversal of 61300431 is 13400316.

It is not a de Polignac number, because 61300431 - 2² = 61300427 is a prime.

It is a super-2 number, since 2×61300431² = 7515485681571522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61300433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9591 + ... + 14648.

It is an arithmetic number, because the mean of its divisors is an integer number (7405320).

Almost surely, 2^61300431 is an apocalyptic number.

61300431 is a deficient number, since it is larger than the sum of its proper divisors (27563409).

61300431 is a wasteful number, since it uses less digits than its factorization.

61300431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24526 (or 24523 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61300431 is about 7829.4591767248. The cubic root of 61300431 is about 394.2949147754.

Adding to 61300431 its reverse (13400316), we get a palindrome (74700747).

The spelling of 61300431 in words is "sixty-one million, three hundred thousand, four hundred thirty-one".