77412151 has 2 divisors, whose sum is σ = 77412152. Its totient is φ = 77412150.

The previous prime is 77412121. The next prime is 77412163. The reversal of 77412151 is 15121477.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77412151 is a prime.

It is a super-2 number, since 2×77412151² = 11985282244893602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77412121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38706075 + 38706076.

It is an arithmetic number, because the mean of its divisors is an integer number (38706076).

Almost surely, 2^77412151 is an apocalyptic number.

77412151 is a deficient number, since it is larger than the sum of its proper divisors (1).

77412151 is an equidigital number, since it uses as much as digits as its factorization.

77412151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1960, while the sum is 28.

The square root of 77412151 is about 8798.4175281695. The cubic root of 77412151 is about 426.1897936137.

The spelling of 77412151 in words is "seventy-seven million, four hundred twelve thousand, one hundred fifty-one".