130311738 has 24 divisors (see below), whose sum is σ = 286973076. Its totient is φ = 42724800.

The previous prime is 130311733. The next prime is 130311739. The reversal of 130311738 is 837113031.

It can be written as a sum of positive squares in 2 ways, for example, as 99141849 + 31169889 = 9957^2 + 5583^2 .

It is a super-2 number, since 2×130311738² = 33962298121161288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130311733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58243 + ... + 60438.

Almost surely, 2^130311738 is an apocalyptic number.

130311738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130311738 is an abundant number, since it is smaller than the sum of its proper divisors (156661338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130311738 is a wasteful number, since it uses less digits than its factorization.

130311738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118750 (or 118747 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 130311738 is about 11415.4166809626. The cubic root of 130311738 is about 506.9843021177.

Adding to 130311738 its reverse (837113031), we get a palindrome (967424769).

It can be divided in two parts, 1303 and 11738, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 130311738 in words is "one hundred thirty million, three hundred eleven thousand, seven hundred thirty-eight".