126908531 has 2 divisors, whose sum is σ = 126908532. Its totient is φ = 126908530.

The previous prime is 126908521. The next prime is 126908567. The reversal of 126908531 is 135809621.

It is a weak prime.

It is an emirp because it is prime and its reverse (135809621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126908531 - 2²⁶ = 59799667 is a prime.

It is a super-2 number, since 2×126908531² = 32211550481155922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126908491 and 126908500.

It is not a weakly prime, because it can be changed into another prime (126908521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63454265 + 63454266.

It is an arithmetic number, because the mean of its divisors is an integer number (63454266).

Almost surely, 2^126908531 is an apocalyptic number.

126908531 is a deficient number, since it is larger than the sum of its proper divisors (1).

126908531 is an equidigital number, since it uses as much as digits as its factorization.

126908531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 126908531 is about 11265.3686579712. The cubic root of 126908531 is about 502.5318656723.

The spelling of 126908531 in words is "one hundred twenty-six million, nine hundred eight thousand, five hundred thirty-one".