126170993 has 8 divisors (see below), whose sum is σ = 135968448. Its totient is φ = 116386704.

The previous prime is 126170977. The next prime is 126171013. The reversal of 126170993 is 399071621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126170993 - 2⁴ = 126170977 is a prime.

It is a super-3 number, since 3×126170993³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126170903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26996 + ... + 31322.

It is an arithmetic number, because the mean of its divisors is an integer number (16996056).

Almost surely, 2^126170993 is an apocalyptic number.

126170993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126170993 is a deficient number, since it is larger than the sum of its proper divisors (9797455).

126170993 is a wasteful number, since it uses less digits than its factorization.

126170993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 126170993 is about 11232.5862115543. The cubic root of 126170993 is about 501.5564737513.

The spelling of 126170993 in words is "one hundred twenty-six million, one hundred seventy thousand, nine hundred ninety-three".