76051945 has 4 divisors (see below), whose sum is σ = 91262340. Its totient is φ = 60841552.

The previous prime is 76051939. The next prime is 76051981. The reversal of 76051945 is 54915067.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42562576 + 33489369 = 6524^2 + 5787^2 .

It is a cyclic number.

It is not a de Polignac number, because 76051945 - 2⁷ = 76051817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7605190 + ... + 7605199.

It is an arithmetic number, because the mean of its divisors is an integer number (22815585).

Almost surely, 2^76051945 is an apocalyptic number.

It is an amenable number.

76051945 is a deficient number, since it is larger than the sum of its proper divisors (15210395).

76051945 is a wasteful number, since it uses less digits than its factorization.

76051945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15210394.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 76051945 is about 8720.7766282597. The cubic root of 76051945 is about 423.6788407702.

The spelling of 76051945 in words is "seventy-six million, fifty-one thousand, nine hundred forty-five".