61461537 has 8 divisors (see below), whose sum is σ = 82423104. Its totient is φ = 40737168.

The previous prime is 61461529. The next prime is 61461541. The reversal of 61461537 is 73516416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61461537 - 2³ = 61461529 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 61461498 and 61461507.

It is not an unprimeable number, because it can be changed into a prime (61461737) 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, 58693 + ... + 59730.

It is an arithmetic number, because the mean of its divisors is an integer number (10302888).

Almost surely, 2^61461537 is an apocalyptic number.

It is an amenable number.

61461537 is a deficient number, since it is larger than the sum of its proper divisors (20961567).

61461537 is a wasteful number, since it uses less digits than its factorization.

61461537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118599.

The product of its digits is 15120, while the sum is 33.

The square root of 61461537 is about 7839.7408758198. The cubic root of 61461537 is about 394.6400331120.

The spelling of 61461537 in words is "sixty-one million, four hundred sixty-one thousand, five hundred thirty-seven".