126250073 has 4 divisors (see below), whose sum is σ = 130322688. Its totient is φ = 122177460.

The previous prime is 126250067. The next prime is 126250099. The reversal of 126250073 is 370052621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 370052621 = 5279 ⋅70099.

It is a cyclic number.

It is not a de Polignac number, because 126250073 - 2⁶ = 126250009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126250063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036261 + ... + 2036322.

It is an arithmetic number, because the mean of its divisors is an integer number (32580672).

Almost surely, 2^126250073 is an apocalyptic number.

It is an amenable number.

126250073 is a deficient number, since it is larger than the sum of its proper divisors (4072615).

126250073 is an equidigital number, since it uses as much as digits as its factorization.

126250073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072614.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 126250073 is about 11236.1057755790. The cubic root of 126250073 is about 501.6612384608.

The spelling of 126250073 in words is "one hundred twenty-six million, two hundred fifty thousand, seventy-three".