126238865 has 8 divisors (see below), whose sum is σ = 151597440. Its totient is φ = 100917232.

The previous prime is 126238843. The next prime is 126238873. The reversal of 126238865 is 568832621.

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 126238865 - 2¹² = 126234769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055 + ... + 15924.

It is an arithmetic number, because the mean of its divisors is an integer number (18949680).

Almost surely, 2^126238865 is an apocalyptic number.

It is an amenable number.

126238865 is a deficient number, since it is larger than the sum of its proper divisors (25358575).

126238865 is a wasteful number, since it uses less digits than its factorization.

126238865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471.

The product of its digits is 138240, while the sum is 41.

The square root of 126238865 is about 11235.6070151995. The cubic root of 126238865 is about 501.6463928310.

The spelling of 126238865 in words is "one hundred twenty-six million, two hundred thirty-eight thousand, eight hundred sixty-five".