126388837 has 2 divisors, whose sum is σ = 126388838. Its totient is φ = 126388836.

The previous prime is 126388813. The next prime is 126388849. The reversal of 126388837 is 738883621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93199716 + 33189121 = 9654^2 + 5761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126388837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126388807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63194418 + 63194419.

It is an arithmetic number, because the mean of its divisors is an integer number (63194419).

Almost surely, 2^126388837 is an apocalyptic number.

It is an amenable number.

126388837 is a deficient number, since it is larger than the sum of its proper divisors (1).

126388837 is an equidigital number, since it uses as much as digits as its factorization.

126388837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 126388837 is about 11242.2789949369. The cubic root of 126388837 is about 501.8449664905.

It can be divided in two parts, 1263 and 88837, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 126388837 in words is "one hundred twenty-six million, three hundred eighty-eight thousand, eight hundred thirty-seven".