126249673 has 8 divisors (see below), whose sum is σ = 142476480. Its totient is φ = 110814480.

The previous prime is 126249653. The next prime is 126249679. The reversal of 126249673 is 376942621.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126249673 is a prime.

It is a super-3 number, since 3×126249673³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126249679) 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, 197565 + ... + 198202.

It is an arithmetic number, because the mean of its divisors is an integer number (17809560).

Almost surely, 2^126249673 is an apocalyptic number.

It is an amenable number.

126249673 is a deficient number, since it is larger than the sum of its proper divisors (16226807).

126249673 is a wasteful number, since it uses less digits than its factorization.

126249673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395807.

The product of its digits is 108864, while the sum is 40.

The square root of 126249673 is about 11236.0879758037. The cubic root of 126249673 is about 501.6607086533.

The spelling of 126249673 in words is "one hundred twenty-six million, two hundred forty-nine thousand, six hundred seventy-three".