61345630 has 16 divisors (see below), whose sum is σ = 113407200. Its totient is φ = 23874912.

The previous prime is 61345619. The next prime is 61345637. The reversal of 61345630 is 3654316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61345637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82530 + ... + 83269.

It is an arithmetic number, because the mean of its divisors is an integer number (7087950).

Almost surely, 2^61345630 is an apocalyptic number.

61345630 is a deficient number, since it is larger than the sum of its proper divisors (52061570).

61345630 is a wasteful number, since it uses less digits than its factorization.

61345630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165843.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 61345630 is about 7832.3451149704. The cubic root of 61345630 is about 394.3918002141.

Adding to 61345630 its reverse (3654316), we get a palindrome (64999946).

The spelling of 61345630 in words is "sixty-one million, three hundred forty-five thousand, six hundred thirty".