61122492 has 48 divisors (see below), whose sum is σ = 160849920. Its totient is φ = 20067696.

The previous prime is 61122469. The next prime is 61122499. The reversal of 61122492 is 29422116.

61122492 is a `hidden beast` number, since 611 + 2 + 2 + 49 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61122499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3013 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (3351040).

Almost surely, 2^61122492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61122492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80424960).

61122492 is an abundant number, since it is smaller than the sum of its proper divisors (99727428).

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

61122492 is a wasteful number, since it uses less digits than its factorization.

61122492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527 (or 8519 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 61122492 is about 7818.0874899172. The cubic root of 61122492 is about 393.9130336198.

The spelling of 61122492 in words is "sixty-one million, one hundred twenty-two thousand, four hundred ninety-two".