61129486 has 16 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 27751480.

The previous prime is 61129457. The next prime is 61129493. The reversal of 61129486 is 68492116.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26595 + ... + 28801.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2^61129486 is an apocalyptic number.

61129486 is a deficient number, since it is larger than the sum of its proper divisors (39025394).

61129486 is a wasteful number, since it uses less digits than its factorization.

61129486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its digits is 20736, while the sum is 37.

The square root of 61129486 is about 7818.5347732168. The cubic root of 61129486 is about 393.9280576728.

The spelling of 61129486 in words is "sixty-one million, one hundred twenty-nine thousand, four hundred eighty-six".