76155481 has 2 divisors, whose sum is σ = 76155482. Its totient is φ = 76155480.

The previous prime is 76155473. The next prime is 76155493. The reversal of 76155481 is 18455167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 4583881 = 8460^2 + 2141^2 .

It is an emirp because it is prime and its reverse (18455167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76155481 - 2³ = 76155473 is a prime.

It is a super-2 number, since 2×76155481² = 11599314572682722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76155481.

It is not a weakly prime, because it can be changed into another prime (76155281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38077740 + 38077741.

It is an arithmetic number, because the mean of its divisors is an integer number (38077741).

Almost surely, 2^76155481 is an apocalyptic number.

It is an amenable number.

76155481 is a deficient number, since it is larger than the sum of its proper divisors (1).

76155481 is an equidigital number, since it uses as much as digits as its factorization.

76155481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 37.

The square root of 76155481 is about 8726.7107778361. The cubic root of 76155481 is about 423.8710169699.

It can be divided in two parts, 76155 and 481, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 76155481 in words is "seventy-six million, one hundred fifty-five thousand, four hundred eighty-one".