130940723 has 4 divisors (see below), whose sum is σ = 137832360. Its totient is φ = 124049088.

The previous prime is 130940701. The next prime is 130940737. The reversal of 130940723 is 327049031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130940723 - 2⁶ = 130940659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130940773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3445790 + ... + 3445827.

It is an arithmetic number, because the mean of its divisors is an integer number (34458090).

Almost surely, 2^130940723 is an apocalyptic number.

130940723 is a deficient number, since it is larger than the sum of its proper divisors (6891637).

130940723 is an equidigital number, since it uses as much as digits as its factorization.

130940723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891636.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 130940723 is about 11442.9333214871. The cubic root of 130940723 is about 507.7986923766.

Adding to 130940723 its reverse (327049031), we get a palindrome (457989754).

The spelling of 130940723 in words is "one hundred thirty million, nine hundred forty thousand, seven hundred twenty-three".