61562138 has 12 divisors (see below), whose sum is σ = 101501610. Its totient is φ = 27982680.

The previous prime is 61562089. The next prime is 61562143. The reversal of 61562138 is 83126516.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 9966649 = 7183^2 + 3157^2 .

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, 126953 + ... + 127436.

Almost surely, 2^61562138 is an apocalyptic number.

61562138 is a deficient number, since it is larger than the sum of its proper divisors (39939472).

61562138 is a wasteful number, since it uses less digits than its factorization.

61562138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254413 (or 254402 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 61562138 is about 7846.1543446455. The cubic root of 61562138 is about 394.8552329614.

The spelling of 61562138 in words is "sixty-one million, five hundred sixty-two thousand, one hundred thirty-eight".