61542735 has 16 divisors (see below), whose sum is σ = 98609280. Its totient is φ = 32775840.

The previous prime is 61542713. The next prime is 61542749. The reversal of 61542735 is 53724516.

It is not a de Polignac number, because 61542735 - 2¹⁵ = 61509967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61542696 and 61542705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9636 + ... + 14694.

It is an arithmetic number, because the mean of its divisors is an integer number (6163080).

Almost surely, 2^61542735 is an apocalyptic number.

61542735 is a deficient number, since it is larger than the sum of its proper divisors (37066545).

61542735 is a wasteful number, since it uses less digits than its factorization.

61542735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878.

The product of its digits is 25200, while the sum is 33.

The square root of 61542735 is about 7844.9177815959. The cubic root of 61542735 is about 394.8137454423.

The spelling of 61542735 in words is "sixty-one million, five hundred forty-two thousand, seven hundred thirty-five".