61536434 has 16 divisors (see below), whose sum is σ = 97058520. Its totient is φ = 29218560.

The previous prime is 61536407. The next prime is 61536443. The reversal of 61536434 is 43463516.

It can be written as a sum of positive squares in 4 ways, for example, as 27931225 + 33605209 = 5285^2 + 5797^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61536434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5159 + ... + 12234.

Almost surely, 2^61536434 is an apocalyptic number.

61536434 is a deficient number, since it is larger than the sum of its proper divisors (35522086).

61536434 is a wasteful number, since it uses less digits than its factorization.

61536434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485.

The product of its digits is 25920, while the sum is 32.

The square root of 61536434 is about 7844.5161737356. The cubic root of 61536434 is about 394.8002707605.

The spelling of 61536434 in words is "sixty-one million, five hundred thirty-six thousand, four hundred thirty-four".