130357778 has 16 divisors (see below), whose sum is σ = 200665080. Its totient is φ = 63475200.

The previous prime is 130357757. The next prime is 130357781. The reversal of 130357778 is 877753031.

It can be written as a sum of positive squares in 4 ways, for example, as 60016009 + 70341769 = 7747^2 + 8387^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 61358 + ... + 63446.

Almost surely, 2^130357778 is an apocalyptic number.

130357778 is a deficient number, since it is larger than the sum of its proper divisors (70307302).

130357778 is a wasteful number, since it uses less digits than its factorization.

130357778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 130357778 is about 11417.4330740320. The cubic root of 130357778 is about 507.0440020580.

The spelling of 130357778 in words is "one hundred thirty million, three hundred fifty-seven thousand, seven hundred seventy-eight".