126375690 has 64 divisors (see below), whose sum is σ = 349873920. Its totient is φ = 28615680.

The previous prime is 126375679. The next prime is 126375703. The reversal of 126375690 is 96573621.

It is a super-2 number, since 2×126375690² = 31941630045952200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20130 + ... + 25650.

It is an arithmetic number, because the mean of its divisors is an integer number (5466780).

Almost surely, 2^126375690 is an apocalyptic number.

126375690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126375690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174936960).

126375690 is an abundant number, since it is smaller than the sum of its proper divisors (223498230).

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

126375690 is a wasteful number, since it uses less digits than its factorization.

126375690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 126375690 is about 11241.6942673247. The cubic root of 126375690 is about 501.8275652054.

The spelling of 126375690 in words is "one hundred twenty-six million, three hundred seventy-five thousand, six hundred ninety".