61160431 has 2 divisors, whose sum is σ = 61160432. Its totient is φ = 61160430.

The previous prime is 61160419. The next prime is 61160483. The reversal of 61160431 is 13406116.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61160431 - 2⁵ = 61160399 is a prime.

It is a super-2 number, since 2×61160431² = 7481196640211522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61160401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30580215 + 30580216.

It is an arithmetic number, because the mean of its divisors is an integer number (30580216).

Almost surely, 2^61160431 is an apocalyptic number.

61160431 is a deficient number, since it is larger than the sum of its proper divisors (1).

61160431 is an equidigital number, since it uses as much as digits as its factorization.

61160431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 61160431 is about 7820.5134741908. The cubic root of 61160431 is about 393.9945179479.

Adding to 61160431 its reverse (13406116), we get a palindrome (74566547).

The spelling of 61160431 in words is "sixty-one million, one hundred sixty thousand, four hundred thirty-one".