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130131229 is a prime number
BaseRepresentation
bin1111100000110…
…10010100011101
3100001212100111011
413300122110131
5231303144404
620525055221
73140045224
oct760322435
9301770434
10130131229
1167501578
12376b7511
1320c63437
14133d5cbb
15b657604
hex7c1a51d

130131229 has 2 divisors, whose sum is σ = 130131230. Its totient is φ = 130131228.

The previous prime is 130131191. The next prime is 130131241. The reversal of 130131229 is 922131031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68508729 + 61622500 = 8277^2 + 7850^2 .

It is a cyclic number.

It is not a de Polignac number, because 130131229 - 215 = 130098461 is a prime.

It is a super-2 number, since 2×1301312292 = 33868273522100882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130131299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65065614 + 65065615.

It is an arithmetic number, because the mean of its divisors is an integer number (65065615).

Almost surely, 2130131229 is an apocalyptic number.

It is an amenable number.

130131229 is a deficient number, since it is larger than the sum of its proper divisors (1).

130131229 is an equidigital number, since it uses as much as digits as its factorization.

130131229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 130131229 is about 11407.5075717704. The cubic root of 130131229 is about 506.7501008625.

The spelling of 130131229 in words is "one hundred thirty million, one hundred thirty-one thousand, two hundred twenty-nine".