61796145 has 16 divisors (see below), whose sum is σ = 100740672. Its totient is φ = 32335680.

The previous prime is 61796131. The next prime is 61796167. The reversal of 61796145 is 54169716.

It is not a de Polignac number, because 61796145 - 2⁷ = 61796017 is a prime.

It is a super-2 number, since 2×61796145² = 7637527073722050, which contains 22 as substring.

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, 38071 + ... + 39660.

It is an arithmetic number, because the mean of its divisors is an integer number (6296292).

Almost surely, 2^61796145 is an apocalyptic number.

It is an amenable number.

61796145 is a deficient number, since it is larger than the sum of its proper divisors (38944527).

61796145 is a wasteful number, since it uses less digits than its factorization.

61796145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77792.

The product of its digits is 45360, while the sum is 39.

The square root of 61796145 is about 7861.0524104601. The cubic root of 61796145 is about 395.3549018816.

The spelling of 61796145 in words is "sixty-one million, seven hundred ninety-six thousand, one hundred forty-five".