126891375 has 32 divisors (see below), whose sum is σ = 227398080. Its totient is φ = 62467200.

The previous prime is 126891343. The next prime is 126891379. The reversal of 126891375 is 573198621.

It is not a de Polignac number, because 126891375 - 2⁵ = 126891343 is a prime.

It is a super-3 number, since 3×126891375³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126891379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8140 + ... + 17889.

It is an arithmetic number, because the mean of its divisors is an integer number (7106190).

Almost surely, 2^126891375 is an apocalyptic number.

126891375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126891375 is a deficient number, since it is larger than the sum of its proper divisors (100506705).

126891375 is a wasteful number, since it uses less digits than its factorization.

126891375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26060 (or 26050 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 126891375 is about 11264.6071835639. The cubic root of 126891375 is about 502.5092198996.

The spelling of 126891375 in words is "one hundred twenty-six million, eight hundred ninety-one thousand, three hundred seventy-five".