126912437 has 2 divisors, whose sum is σ = 126912438. Its totient is φ = 126912436.

The previous prime is 126912431. The next prime is 126912493. The reversal of 126912437 is 734219621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99181681 + 27730756 = 9959^2 + 5266^2 .

It is a cyclic number.

It is not a de Polignac number, because 126912437 - 2¹⁰ = 126911413 is a prime.

It is a super-2 number, since 2×126912437² = 32213533330557938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126912397 and 126912406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126912431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63456218 + 63456219.

It is an arithmetic number, because the mean of its divisors is an integer number (63456219).

Almost surely, 2^126912437 is an apocalyptic number.

It is an amenable number.

126912437 is a deficient number, since it is larger than the sum of its proper divisors (1).

126912437 is an equidigital number, since it uses as much as digits as its factorization.

126912437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 126912437 is about 11265.5420198053. The cubic root of 126912437 is about 502.5370212735.

The spelling of 126912437 in words is "one hundred twenty-six million, nine hundred twelve thousand, four hundred thirty-seven".