130156549 has 2 divisors, whose sum is σ = 130156550. Its totient is φ = 130156548.

The previous prime is 130156541. The next prime is 130156567. The reversal of 130156549 is 945651031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127283524 + 2873025 = 11282^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 130156549 - 2³ = 130156541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130156541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65078274 + 65078275.

It is an arithmetic number, because the mean of its divisors is an integer number (65078275).

Almost surely, 2^130156549 is an apocalyptic number.

It is an amenable number.

130156549 is a deficient number, since it is larger than the sum of its proper divisors (1).

130156549 is an equidigital number, since it uses as much as digits as its factorization.

130156549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 130156549 is about 11408.6173132418. The cubic root of 130156549 is about 506.7829653295.

The spelling of 130156549 in words is "one hundred thirty million, one hundred fifty-six thousand, five hundred forty-nine".