130776751 has 4 divisors (see below), whose sum is σ = 149459152. Its totient is φ = 112094352.

The previous prime is 130776739. The next prime is 130776769. The reversal of 130776751 is 157677031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157677031 = 29 ⋅5437139.

It is a cyclic number.

It is not a de Polignac number, because 130776751 - 2⁷ = 130776623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130776751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130776251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9341190 + ... + 9341203.

It is an arithmetic number, because the mean of its divisors is an integer number (37364788).

Almost surely, 2^130776751 is an apocalyptic number.

130776751 is a deficient number, since it is larger than the sum of its proper divisors (18682401).

130776751 is an equidigital number, since it uses as much as digits as its factorization.

130776751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18682400.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 130776751 is about 11435.7663057619. The cubic root of 130776751 is about 507.5866382860.

It can be divided in two parts, 130 and 776751, that added together give a triangular number (776881 = T₁₂₄₆).

The spelling of 130776751 in words is "one hundred thirty million, seven hundred seventy-six thousand, seven hundred fifty-one".