126342445 has 8 divisors (see below), whose sum is σ = 153002520. Its totient is φ = 100146240.

The previous prime is 126342431. The next prime is 126342449. The reversal of 126342445 is 544243621.

It can be written as a sum of positive squares in 4 ways, for example, as 1394761 + 124947684 = 1181^2 + 11178^2 .

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

It is not a de Polignac number, because 126342445 - 2⁵ = 126342413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126342449) 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, 115366 + ... + 116455.

It is an arithmetic number, because the mean of its divisors is an integer number (19125315).

Almost surely, 2^126342445 is an apocalyptic number.

It is an amenable number.

126342445 is a deficient number, since it is larger than the sum of its proper divisors (26660075).

126342445 is a wasteful number, since it uses less digits than its factorization.

126342445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231935.

The product of its digits is 23040, while the sum is 31.

The square root of 126342445 is about 11240.2155228447. The cubic root of 126342445 is about 501.7835569510.

The spelling of 126342445 in words is "one hundred twenty-six million, three hundred forty-two thousand, four hundred forty-five".