126969877 has 2 divisors, whose sum is σ = 126969878. Its totient is φ = 126969876.

The previous prime is 126969863. The next prime is 126969919. The reversal of 126969877 is 778969621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103408561 + 23561316 = 10169^2 + 4854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126969877 is a prime.

It is a super-2 number, since 2×126969877² = 32242699330790258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126969677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63484938 + 63484939.

It is an arithmetic number, because the mean of its divisors is an integer number (63484939).

Almost surely, 2^126969877 is an apocalyptic number.

It is an amenable number.

126969877 is a deficient number, since it is larger than the sum of its proper divisors (1).

126969877 is an equidigital number, since it uses as much as digits as its factorization.

126969877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 55.

The square root of 126969877 is about 11268.0910983183. The cubic root of 126969877 is about 502.6128251727.

The spelling of 126969877 in words is "one hundred twenty-six million, nine hundred sixty-nine thousand, eight hundred seventy-seven".