76771145 has 8 divisors (see below), whose sum is σ = 100500480. Its totient is φ = 55833520.

The previous prime is 76771127. The next prime is 76771151. The reversal of 76771145 is 54117767.

It is a happy number.

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

It is not a de Polignac number, because 76771145 - 2⁶ = 76771081 is a prime.

It is a super-2 number, since 2×76771145² = 11787617409222050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76771099 and 76771108.

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, 697865 + ... + 697974.

It is an arithmetic number, because the mean of its divisors is an integer number (12562560).

Almost surely, 2^76771145 is an apocalyptic number.

It is an amenable number.

76771145 is a deficient number, since it is larger than the sum of its proper divisors (23729335).

76771145 is a wasteful number, since it uses less digits than its factorization.

76771145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395855.

The product of its digits is 41160, while the sum is 38.

The square root of 76771145 is about 8761.9144597514. The cubic root of 76771145 is about 425.0101866071.

The spelling of 76771145 in words is "seventy-six million, seven hundred seventy-one thousand, one hundred forty-five".