126132551 has 2 divisors, whose sum is σ = 126132552. Its totient is φ = 126132550.

The previous prime is 126132533. The next prime is 126132557. The reversal of 126132551 is 155231621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126132551 - 2²² = 121938247 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126132551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126132557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63066275 + 63066276.

It is an arithmetic number, because the mean of its divisors is an integer number (63066276).

Almost surely, 2^126132551 is an apocalyptic number.

126132551 is a deficient number, since it is larger than the sum of its proper divisors (1).

126132551 is an equidigital number, since it uses as much as digits as its factorization.

126132551 is an evil number, because the sum of its binary digits is even.

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

The square root of 126132551 is about 11230.8748991341. The cubic root of 126132551 is about 501.5055302076.

The spelling of 126132551 in words is "one hundred twenty-six million, one hundred thirty-two thousand, five hundred fifty-one".