61312430 has 32 divisors (see below), whose sum is σ = 116588160. Its totient is φ = 23150880.

The previous prime is 61312403. The next prime is 61312469. The reversal of 61312430 is 3421316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88385 + ... + 89075.

It is an arithmetic number, because the mean of its divisors is an integer number (3643380).

Almost surely, 2^61312430 is an apocalyptic number.

61312430 is a deficient number, since it is larger than the sum of its proper divisors (55275730).

61312430 is a wasteful number, since it uses less digits than its factorization.

61312430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 61312430 is about 7830.2254118256. The cubic root of 61312430 is about 394.3206396409.

Adding to 61312430 its reverse (3421316), we get a palindrome (64733746).

The spelling of 61312430 in words is "sixty-one million, three hundred twelve thousand, four hundred thirty".