77222135 has 8 divisors (see below), whose sum is σ = 92761200. Its totient is φ = 61714624.

The previous prime is 77222077. The next prime is 77222161. The reversal of 77222135 is 53122277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77222135 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77222098 and 77222107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117 + ... + 12606.

It is an arithmetic number, because the mean of its divisors is an integer number (11595150).

Almost surely, 2^77222135 is an apocalyptic number.

77222135 is a deficient number, since it is larger than the sum of its proper divisors (15539065).

77222135 is a wasteful number, since it uses less digits than its factorization.

77222135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15777.

The product of its digits is 5880, while the sum is 29.

The square root of 77222135 is about 8787.6125881834. The cubic root of 77222135 is about 425.8407991750.

The spelling of 77222135 in words is "seventy-seven million, two hundred twenty-two thousand, one hundred thirty-five".