130404991 has 2 divisors, whose sum is σ = 130404992. Its totient is φ = 130404990.

The previous prime is 130404979. The next prime is 130405001. The reversal of 130404991 is 199404031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130404991 - 2⁷ = 130404863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130404971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65202495 + 65202496.

It is an arithmetic number, because the mean of its divisors is an integer number (65202496).

Almost surely, 2^130404991 is an apocalyptic number.

130404991 is a deficient number, since it is larger than the sum of its proper divisors (1).

130404991 is an equidigital number, since it uses as much as digits as its factorization.

130404991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 130404991 is about 11419.5004706861. The cubic root of 130404991 is about 507.1052084274.

The spelling of 130404991 in words is "one hundred thirty million, four hundred four thousand, nine hundred ninety-one".