77256151 has 8 divisors (see below), whose sum is σ = 89357184. Its totient is φ = 65421240.

The previous prime is 77256107. The next prime is 77256161. The reversal of 77256151 is 15165277.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77256151 - 2¹⁵ = 77223383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77256161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65905 + ... + 67066.

It is an arithmetic number, because the mean of its divisors is an integer number (11169648).

Almost surely, 2^77256151 is an apocalyptic number.

77256151 is a deficient number, since it is larger than the sum of its proper divisors (12101033).

77256151 is a wasteful number, since it uses less digits than its factorization.

77256151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133061.

The product of its digits is 14700, while the sum is 34.

The square root of 77256151 is about 8789.5478268225. The cubic root of 77256151 is about 425.9033169761.

The spelling of 77256151 in words is "seventy-seven million, two hundred fifty-six thousand, one hundred fifty-one".