126425731 has 8 divisors (see below), whose sum is σ = 129297600. Its totient is φ = 123578280.

The previous prime is 126425729. The next prime is 126425737. The reversal of 126425731 is 137524621.

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 126425731 - 2¹ = 126425729 is a prime.

It is a super-2 number, since 2×126425731² = 31966930917768722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126425693 and 126425702.

It is not an unprimeable number, because it can be changed into a prime (126425737) 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, 4576 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (16162200).

Almost surely, 2^126425731 is an apocalyptic number.

126425731 is a deficient number, since it is larger than the sum of its proper divisors (2871869).

126425731 is a wasteful number, since it uses less digits than its factorization.

126425731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12209.

The product of its digits is 10080, while the sum is 31.

The square root of 126425731 is about 11243.9197346833. The cubic root of 126425731 is about 501.8937927090.

The spelling of 126425731 in words is "one hundred twenty-six million, four hundred twenty-five thousand, seven hundred thirty-one".