126140664 has 64 divisors (see below), whose sum is σ = 340734240. Its totient is φ = 38684160.

The previous prime is 126140627. The next prime is 126140681. The reversal of 126140664 is 466041621.

It is a super-2 number, since 2×126140664² = 31822934228721792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143394 + ... + 144270.

Almost surely, 2^126140664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126140664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170367120).

126140664 is an abundant number, since it is smaller than the sum of its proper divisors (214593576).

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

126140664 is a wasteful number, since it uses less digits than its factorization.

126140664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 126140664 is about 11231.2360851333. The cubic root of 126140664 is about 501.5162824602.

The spelling of 126140664 in words is "one hundred twenty-six million, one hundred forty thousand, six hundred sixty-four".