126449280031 has 8 divisors (see below), whose sum is σ = 133892203824. Its totient is φ = 119006881920.

The previous prime is 126449280017. The next prime is 126449280043. The reversal of 126449280031 is 130082944621.

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 126449280031 - 2⁹ = 126449279519 is a prime.

It is a super-2 number, since 2×126449280031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126449280631) 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, 433156 + ... + 663718.

It is an arithmetic number, because the mean of its divisors is an integer number (16736525478).

Almost surely, 2^126449280031 is an apocalyptic number.

126449280031 is a deficient number, since it is larger than the sum of its proper divisors (7442923793).

126449280031 is a wasteful number, since it uses less digits than its factorization.

126449280031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262841.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 126449280031 in words is "one hundred twenty-six billion, four hundred forty-nine million, two hundred eighty thousand, thirty-one".