126102939 has 4 divisors (see below), whose sum is σ = 168137256. Its totient is φ = 84068624.

The previous prime is 126102937. The next prime is 126102959. The reversal of 126102939 is 939201621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126102939 - 2¹ = 126102937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126102937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21017154 + ... + 21017159.

It is an arithmetic number, because the mean of its divisors is an integer number (42034314).

Almost surely, 2^126102939 is an apocalyptic number.

126102939 is a deficient number, since it is larger than the sum of its proper divisors (42034317).

126102939 is an equidigital number, since it uses as much as digits as its factorization.

126102939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42034316.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 126102939 is about 11229.5564916875. The cubic root of 126102939 is about 501.4662811691.

The spelling of 126102939 in words is "one hundred twenty-six million, one hundred two thousand, nine hundred thirty-nine".