61219092 has 24 divisors (see below), whose sum is σ = 155830752. Its totient is φ = 18551200.

The previous prime is 61219073. The next prime is 61219097. The reversal of 61219092 is 29091216.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61219097) 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, 231759 + ... + 232022.

It is an arithmetic number, because the mean of its divisors is an integer number (6492948).

Almost surely, 2^61219092 is an apocalyptic number.

It is an amenable number.

61219092 is an abundant number, since it is smaller than the sum of its proper divisors (94611660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61219092 is a wasteful number, since it uses less digits than its factorization.

61219092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463799 (or 463797 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 61219092 is about 7824.2630323884. The cubic root of 61219092 is about 394.1204421049.

The spelling of 61219092 in words is "sixty-one million, two hundred nineteen thousand, ninety-two".