126608973 has 4 divisors (see below), whose sum is σ = 168811968. Its totient is φ = 84405980.

The previous prime is 126608971. The next prime is 126608987. The reversal of 126608973 is 379806621.

It is a happy number.

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: 379806621 = 3 ⋅126602207.

It is a cyclic number.

It is not a de Polignac number, because 126608973 - 2¹ = 126608971 is a prime.

It is a super-2 number, since 2×126608973² = 32059664088229458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126608971) 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, 21101493 + ... + 21101498.

It is an arithmetic number, because the mean of its divisors is an integer number (42202992).

Almost surely, 2^126608973 is an apocalyptic number.

It is an amenable number.

126608973 is a deficient number, since it is larger than the sum of its proper divisors (42202995).

126608973 is an equidigital number, since it uses as much as digits as its factorization.

126608973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42202994.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 126608973 is about 11252.0652770947. The cubic root of 126608973 is about 502.1361579945.

The spelling of 126608973 in words is "one hundred twenty-six million, six hundred eight thousand, nine hundred seventy-three".