126125653 has 4 divisors (see below), whose sum is σ = 126165088. Its totient is φ = 126086220.

The previous prime is 126125641. The next prime is 126125683. The reversal of 126125653 is 356521621.

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: 356521621 = 29 ⋅12293849.

It is a cyclic number.

It is not a de Polignac number, because 126125653 - 2²¹ = 124028501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126125683) 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, 14451 + ... + 21472.

It is an arithmetic number, because the mean of its divisors is an integer number (31541272).

Almost surely, 2^126125653 is an apocalyptic number.

It is an amenable number.

126125653 is a deficient number, since it is larger than the sum of its proper divisors (39435).

126125653 is an equidigital number, since it uses as much as digits as its factorization.

126125653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39434.

The product of its digits is 10800, while the sum is 31.

The square root of 126125653 is about 11230.5677950850. The cubic root of 126125653 is about 501.4963878459.

The spelling of 126125653 in words is "one hundred twenty-six million, one hundred twenty-five thousand, six hundred fifty-three".