126997167 has 16 divisors (see below), whose sum is σ = 185172480. Its totient is φ = 76780800.

The previous prime is 126997163. The next prime is 126997183. The reversal of 126997167 is 761799621.

It is a happy number.

It is not a de Polignac number, because 126997167 - 2² = 126997163 is a prime.

It is a super-2 number, since 2×126997167² = 32256560852051778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126997163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9759 + ... + 18687.

It is an arithmetic number, because the mean of its divisors is an integer number (11573280).

Almost surely, 2^126997167 is an apocalyptic number.

126997167 is a deficient number, since it is larger than the sum of its proper divisors (58175313).

126997167 is a wasteful number, since it uses less digits than its factorization.

126997167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9374.

The product of its digits is 285768, while the sum is 48.

The square root of 126997167 is about 11269.3019748341. The cubic root of 126997167 is about 502.6488319321.

The spelling of 126997167 in words is "one hundred twenty-six million, nine hundred ninety-seven thousand, one hundred sixty-seven".