124520051 has 4 divisors (see below), whose sum is σ = 124545000. Its totient is φ = 124495104.

The previous prime is 124520047. The next prime is 124520057. The reversal of 124520051 is 150025421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124520051 - 2² = 124520047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124520057) 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, 2126 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (31136250).

Almost surely, 2^124520051 is an apocalyptic number.

124520051 is a deficient number, since it is larger than the sum of its proper divisors (24949).

124520051 is an equidigital number, since it uses as much as digits as its factorization.

124520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24948.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 124520051 is about 11158.8552728315. The cubic root of 124520051 is about 499.3592472225.

Adding to 124520051 its reverse (150025421), we get a palindrome (274545472).

The spelling of 124520051 in words is "one hundred twenty-four million, five hundred twenty thousand, fifty-one".