126023649 has 16 divisors (see below), whose sum is σ = 173850624. Its totient is φ = 81118800.

The previous prime is 126023641. The next prime is 126023663. The reversal of 126023649 is 946320621.

It is not a de Polignac number, because 126023649 - 2³ = 126023641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126023641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47344 + ... + 49934.

It is an arithmetic number, because the mean of its divisors is an integer number (10865664).

Almost surely, 2^126023649 is an apocalyptic number.

It is an amenable number.

126023649 is a deficient number, since it is larger than the sum of its proper divisors (47826975).

126023649 is a wasteful number, since it uses less digits than its factorization.

126023649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 126023649 is about 11226.0255210827. The cubic root of 126023649 is about 501.3611564769.

The spelling of 126023649 in words is "one hundred twenty-six million, twenty-three thousand, six hundred forty-nine".