77100146 has 4 divisors (see below), whose sum is σ = 115650222. Its totient is φ = 38550072.

The previous prime is 77100143. The next prime is 77100173. The reversal of 77100146 is 64100177.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64176121 + 12924025 = 8011^2 + 3595^2 .

It is not an unprimeable number, because it can be changed into a prime (77100143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19275035 + ... + 19275038.

Almost surely, 2^77100146 is an apocalyptic number.

77100146 is a deficient number, since it is larger than the sum of its proper divisors (38550076).

77100146 is a wasteful number, since it uses less digits than its factorization.

77100146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38550075.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 77100146 is about 8780.6688811275. The cubic root of 77100146 is about 425.6164452313.

The spelling of 77100146 in words is "seventy-seven million, one hundred thousand, one hundred forty-six".