127623013 has 4 divisors (see below), whose sum is σ = 145854880. Its totient is φ = 109391148.

The previous prime is 127622947. The next prime is 127623017. The reversal of 127623013 is 310326721.

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: 310326721 = 17 ⋅18254513.

It is a cyclic number.

It is not a de Polignac number, because 127623013 - 2⁹ = 127622501 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 (127623017) 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, 9115923 + ... + 9115936.

It is an arithmetic number, because the mean of its divisors is an integer number (36463720).

Almost surely, 2^127623013 is an apocalyptic number.

It is an amenable number.

127623013 is a deficient number, since it is larger than the sum of its proper divisors (18231867).

127623013 is an equidigital number, since it uses as much as digits as its factorization.

127623013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18231866.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 127623013 is about 11297.0355846125. The cubic root of 127623013 is about 503.4731689989.

Adding to 127623013 its reverse (310326721), we get a palindrome (437949734).

The spelling of 127623013 in words is "one hundred twenty-seven million, six hundred twenty-three thousand, thirteen".