123900953 has 4 divisors (see below), whose sum is σ = 135164688. Its totient is φ = 112637220.

The previous prime is 123900949. The next prime is 123900961. The reversal of 123900953 is 359009321.

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.

It is a cyclic number.

It is not a de Polignac number, because 123900953 - 2² = 123900949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123900853) 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, 5631851 + ... + 5631872.

It is an arithmetic number, because the mean of its divisors is an integer number (33791172).

Almost surely, 2^123900953 is an apocalyptic number.

It is an amenable number.

123900953 is a deficient number, since it is larger than the sum of its proper divisors (11263735).

123900953 is a wasteful number, since it uses less digits than its factorization.

123900953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11263734.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 123900953 is about 11131.0804956213. The cubic root of 123900953 is about 498.5302881269.

The spelling of 123900953 in words is "one hundred twenty-three million, nine hundred thousand, nine hundred fifty-three".