126959670 has 64 divisors (see below), whose sum is σ = 339655680. Its totient is φ = 33746400.

The previous prime is 126959659. The next prime is 126959671. The reversal of 126959670 is 76959621.

It is a happy number.

It is a super-2 number, since 2×126959670² = 32237515613017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126959671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115825 + ... + 116915.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^126959670 is an apocalyptic number.

126959670 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 126959670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169827840).

126959670 is an abundant number, since it is smaller than the sum of its proper divisors (212696010).

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

126959670 is a wasteful number, since it uses less digits than its factorization.

126959670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 126959670 is about 11267.6381731044. The cubic root of 126959670 is about 502.5993566065.

The spelling of 126959670 in words is "one hundred twenty-six million, nine hundred fifty-nine thousand, six hundred seventy".