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130156541 is a prime number
BaseRepresentation
bin1111100001000…
…00011111111101
3100001220122012122
413300200133331
5231310002131
620525412325
73140212064
oct760403775
9301818178
10130156541
1167519599
123770a0a5
1320c71b08
14134011db
15b65ed7b
hex7c207fd

130156541 has 2 divisors, whose sum is σ = 130156542. Its totient is φ = 130156540.

The previous prime is 130156487. The next prime is 130156549. The reversal of 130156541 is 145651031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128913316 + 1243225 = 11354^2 + 1115^2 .

It is an emirp because it is prime and its reverse (145651031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130156541 - 218 = 129894397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130156541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130156549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65078270 + 65078271.

It is an arithmetic number, because the mean of its divisors is an integer number (65078271).

Almost surely, 2130156541 is an apocalyptic number.

It is an amenable number.

130156541 is a deficient number, since it is larger than the sum of its proper divisors (1).

130156541 is an equidigital number, since it uses as much as digits as its factorization.

130156541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 130156541 is about 11408.6169626296. The cubic root of 130156541 is about 506.7829549465.

The spelling of 130156541 in words is "one hundred thirty million, one hundred fifty-six thousand, five hundred forty-one".