130400750 has 16 divisors (see below), whose sum is σ = 244110672. Its totient is φ = 52160200.

The previous prime is 130400747. The next prime is 130400759. The reversal of 130400750 is 57004031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130400759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260552 + ... + 261051.

It is an arithmetic number, because the mean of its divisors is an integer number (15256917).

Almost surely, 2^130400750 is an apocalyptic number.

130400750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130400750 is a deficient number, since it is larger than the sum of its proper divisors (113709922).

130400750 is an equidigital number, since it uses as much as digits as its factorization.

130400750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521620 (or 521610 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 130400750 is about 11419.3147780416. The cubic root of 130400750 is about 507.0997110496.

Adding to 130400750 its reverse (57004031), we get a palindrome (187404781).

The spelling of 130400750 in words is "one hundred thirty million, four hundred thousand, seven hundred fifty".