61254972 has 18 divisors (see below), whose sum is σ = 154839048. Its totient is φ = 20418312.

The previous prime is 61254929. The next prime is 61254997. The reversal of 61254972 is 27945216.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1701527 = 61254972 / (6 + 1 + 2 + 5 + 4 + 9 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850728 + ... + 850799.

Almost surely, 2^61254972 is an apocalyptic number.

It is an amenable number.

61254972 is an abundant number, since it is smaller than the sum of its proper divisors (93584076).

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

61254972 is a wasteful number, since it uses less digits than its factorization.

61254972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701537 (or 1701532 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 61254972 is about 7826.5555642313. Note that the first 4 decimals coincide. The cubic root of 61254972 is about 394.1974239704.

It can be divided in two parts, 61254 and 972, that added together give a palindrome (62226).

The spelling of 61254972 in words is "sixty-one million, two hundred fifty-four thousand, nine hundred seventy-two".