76145869 has 2 divisors, whose sum is σ = 76145870. Its totient is φ = 76145868.

The previous prime is 76145843. The next prime is 76145887. The reversal of 76145869 is 96854167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62173225 + 13972644 = 7885^2 + 3738^2 .

It is a cyclic number.

It is not a de Polignac number, because 76145869 - 2⁵ = 76145837 is a prime.

It is a super-2 number, since 2×76145869² = 11596386731530322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76145899) by changing a digit.

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 as a sum of consecutive naturals, namely, 38072934 + 38072935.

It is an arithmetic number, because the mean of its divisors is an integer number (38072935).

Almost surely, 2^76145869 is an apocalyptic number.

It is an amenable number.

76145869 is a deficient number, since it is larger than the sum of its proper divisors (1).

76145869 is an equidigital number, since it uses as much as digits as its factorization.

76145869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 76145869 is about 8726.1600374964. The cubic root of 76145869 is about 423.8531831928.

The spelling of 76145869 in words is "seventy-six million, one hundred forty-five thousand, eight hundred sixty-nine".