126248993 has 8 divisors (see below), whose sum is σ = 136136448. Its totient is φ = 116386704.

The previous prime is 126248981. The next prime is 126249029. The reversal of 126248993 is 399842621.

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 126248993 - 2⁶ = 126248929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126248933) 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 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 16622.

It is an arithmetic number, because the mean of its divisors is an integer number (17017056).

Almost surely, 2^126248993 is an apocalyptic number.

126248993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126248993 is a deficient number, since it is larger than the sum of its proper divisors (9887455).

126248993 is a wasteful number, since it uses less digits than its factorization.

126248993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12583.

The product of its digits is 186624, while the sum is 44.

The square root of 126248993 is about 11236.0577161209. The cubic root of 126248993 is about 501.6598079780.

The spelling of 126248993 in words is "one hundred twenty-six million, two hundred forty-eight thousand, nine hundred ninety-three".