130243745 has 16 divisors (see below), whose sum is σ = 159010560. Its totient is φ = 102395904.

The previous prime is 130243643. The next prime is 130243769. The reversal of 130243745 is 547342031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130243745 - 2⁸ = 130243489 is a prime.

It is a super-2 number, since 2×130243745² = 33926866223250050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100874 + ... + 102156.

It is an arithmetic number, because the mean of its divisors is an integer number (9938160).

Almost surely, 2^130243745 is an apocalyptic number.

It is an amenable number.

130243745 is a deficient number, since it is larger than the sum of its proper divisors (28766815).

130243745 is a wasteful number, since it uses less digits than its factorization.

130243745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 130243745 is about 11412.4381706978. The cubic root of 130243745 is about 506.8961100605.

Adding to 130243745 its reverse (547342031), we get a palindrome (677585776).

The spelling of 130243745 in words is "one hundred thirty million, two hundred forty-three thousand, seven hundred forty-five".