61159406 has 32 divisors (see below), whose sum is σ = 114773760. Its totient is φ = 23745600.

The previous prime is 61159391. The next prime is 61159411. The reversal of 61159406 is 60495116.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62501 + ... + 63471.

It is an arithmetic number, because the mean of its divisors is an integer number (3586680).

Almost surely, 2^61159406 is an apocalyptic number.

61159406 is a deficient number, since it is larger than the sum of its proper divisors (53614354).

61159406 is a wasteful number, since it uses less digits than its factorization.

61159406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 61159406 is about 7820.4479411348. The cubic root of 61159406 is about 393.9923169244.

The spelling of 61159406 in words is "sixty-one million, one hundred fifty-nine thousand, four hundred six".