61011812 has 12 divisors (see below), whose sum is σ = 112390320. Its totient is φ = 28900296.

The previous prime is 61011803. The next prime is 61011823. The reversal of 61011812 is 21811016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401318 + ... + 401469.

It is an arithmetic number, because the mean of its divisors is an integer number (9365860).

Almost surely, 2^61011812 is an apocalyptic number.

It is an amenable number.

61011812 is a deficient number, since it is larger than the sum of its proper divisors (51378508).

61011812 is a wasteful number, since it uses less digits than its factorization.

61011812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802810 (or 802808 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 61011812 is about 7811.0058251163. The cubic root of 61011812 is about 393.6751253615.

Adding to 61011812 its reverse (21811016), we get a palindrome (82822828).

The spelling of 61011812 in words is "sixty-one million, eleven thousand, eight hundred twelve".