61605074 has 16 divisors (see below), whose sum is σ = 95122968. Its totient is φ = 29901312.

The previous prime is 61605031. The next prime is 61605101. The reversal of 61605074 is 47050616.

It can be written as a sum of positive squares in 4 ways, for example, as 60730849 + 874225 = 7793^2 + 935^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49184 + ... + 50420.

Almost surely, 2^61605074 is an apocalyptic number.

61605074 is a deficient number, since it is larger than the sum of its proper divisors (33517894).

61605074 is a wasteful number, since it uses less digits than its factorization.

61605074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61605074 is about 7848.8899852145. The cubic root of 61605074 is about 394.9470077925.

The spelling of 61605074 in words is "sixty-one million, six hundred five thousand, seventy-four".