130138775 has 24 divisors (see below), whose sum is σ = 179405184. Its totient is φ = 92995200.

The previous prime is 130138763. The next prime is 130138777. The reversal of 130138775 is 577831031.

It is not a de Polignac number, because 130138775 - 2⁴ = 130138759 is a prime.

It is a super-2 number, since 2×130138775² = 33872201517001250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130138777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3617 + ... + 16533.

It is an arithmetic number, because the mean of its divisors is an integer number (7475216).

Almost surely, 2^130138775 is an apocalyptic number.

130138775 is a deficient number, since it is larger than the sum of its proper divisors (49266409).

130138775 is a wasteful number, since it uses less digits than its factorization.

130138775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971 (or 12966 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 130138775 is about 11407.8383140716. The cubic root of 130138775 is about 506.7598957502.

The spelling of 130138775 in words is "one hundred thirty million, one hundred thirty-eight thousand, seven hundred seventy-five".