77133133 has 16 divisors (see below), whose sum is σ = 96370560. Its totient is φ = 59976000.

The previous prime is 77133113. The next prime is 77133149. The reversal of 77133133 is 33133177.

It is not a de Polignac number, because 77133133 - 2⁵ = 77133101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77133113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53263 + ... + 54691.

It is an arithmetic number, because the mean of its divisors is an integer number (6023160).

Almost surely, 2^77133133 is an apocalyptic number.

It is an amenable number.

77133133 is a deficient number, since it is larger than the sum of its proper divisors (19237427).

77133133 is a wasteful number, since it uses less digits than its factorization.

77133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148.

The product of its digits is 3969, while the sum is 28.

The square root of 77133133 is about 8782.5470679069. The cubic root of 77133133 is about 425.6771360280.

The spelling of 77133133 in words is "seventy-seven million, one hundred thirty-three thousand, one hundred thirty-three".