126710501 has 2 divisors, whose sum is σ = 126710502. Its totient is φ = 126710500.

The previous prime is 126710489. The next prime is 126710527. The reversal of 126710501 is 105017621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116661601 + 10048900 = 10801^2 + 3170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126710501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126710531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63355250 + 63355251.

It is an arithmetic number, because the mean of its divisors is an integer number (63355251).

Almost surely, 2^126710501 is an apocalyptic number.

It is an amenable number.

126710501 is a deficient number, since it is larger than the sum of its proper divisors (1).

126710501 is an equidigital number, since it uses as much as digits as its factorization.

126710501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 126710501 is about 11256.5759003349. The cubic root of 126710501 is about 502.2703434778.

The spelling of 126710501 in words is "one hundred twenty-six million, seven hundred ten thousand, five hundred one".