126997600 has 36 divisors (see below), whose sum is σ = 310034844. Its totient is φ = 50798720.

The previous prime is 126997573. The next prime is 126997603. The reversal of 126997600 is 6799621.

It is a super-2 number, since 2×126997600² = 32256780811520000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126997603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78574 + ... + 80173.

It is an arithmetic number, because the mean of its divisors is an integer number (8612079).

Almost surely, 2^126997600 is an apocalyptic number.

126997600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126997600 is an abundant number, since it is smaller than the sum of its proper divisors (183037244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126997600 is a wasteful number, since it uses less digits than its factorization.

126997600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158767 (or 158754 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 126997600 is about 11269.3211863004. The cubic root of 126997600 is about 502.6494031960.

The spelling of 126997600 in words is "one hundred twenty-six million, nine hundred ninety-seven thousand, six hundred".