130742536 has 8 divisors (see below), whose sum is σ = 245142270. Its totient is φ = 65371264.

The previous prime is 130742533. The next prime is 130742537. The reversal of 130742536 is 635247031.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 44809636 = 9270^2 + 6694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×130742536² = 34187221439422592, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 130742536 parts by 16170 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 130742498 and 130742507.

It is not an unprimeable number, because it can be changed into a prime (130742533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8171401 + ... + 8171416.

Almost surely, 2^130742536 is an apocalyptic number.

It is an amenable number.

130742536 is a deficient number, since it is larger than the sum of its proper divisors (114399734).

130742536 is a wasteful number, since it uses less digits than its factorization.

130742536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16342823 (or 16342819 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 130742536 is about 11434.2702434392. The cubic root of 130742536 is about 507.5423679513.

Adding to 130742536 its reverse (635247031), we get a palindrome (765989567).

The spelling of 130742536 in words is "one hundred thirty million, seven hundred forty-two thousand, five hundred thirty-six".