61212764 has 6 divisors (see below), whose sum is σ = 107122344. Its totient is φ = 30606380.

The previous prime is 61212743. The next prime is 61212769. The reversal of 61212764 is 46721216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61212769) 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 as a sum of consecutive naturals, namely, 7651592 + ... + 7651599.

It is an arithmetic number, because the mean of its divisors is an integer number (17853724).

Almost surely, 2^61212764 is an apocalyptic number.

It is an amenable number.

61212764 is a deficient number, since it is larger than the sum of its proper divisors (45909580).

61212764 is a wasteful number, since it uses less digits than its factorization.

61212764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303195 (or 15303193 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 61212764 is about 7823.8586388048. The cubic root of 61212764 is about 394.1068620271.

The spelling of 61212764 in words is "sixty-one million, two hundred twelve thousand, seven hundred sixty-four".