61610146 has 32 divisors (see below), whose sum is σ = 104509440. Its totient is φ = 27027264.

The previous prime is 61610111. The next prime is 61610147. The reversal of 61610146 is 64101616.

It is a self number, because there is not a number n which added to its sum of digits gives 61610146.

It is not an unprimeable number, because it can be changed into a prime (61610147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160671 + ... + 161053.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 2^61610146 is an apocalyptic number.

61610146 is a deficient number, since it is larger than the sum of its proper divisors (42899294).

61610146 is a wasteful number, since it uses less digits than its factorization.

61610146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 61610146 is about 7849.2130815770. The cubic root of 61610146 is about 394.9578462734.

The spelling of 61610146 in words is "sixty-one million, six hundred ten thousand, one hundred forty-six".