905145250121 has 8 divisors (see below), whose sum is σ = 1044119488320. Its totient is φ = 768587955408.

The previous prime is 905145250099. The next prime is 905145250181. The reversal of 905145250121 is 121052541509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 905145250121 - 2²⁶ = 905078141257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (905145250181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604235066 + ... + 604236563.

It is an arithmetic number, because the mean of its divisors is an integer number (130514936040).

Almost surely, 2^905145250121 is an apocalyptic number.

It is an amenable number.

905145250121 is a deficient number, since it is larger than the sum of its proper divisors (138974238199).

905145250121 is a wasteful number, since it uses less digits than its factorization.

905145250121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208471743.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 905145250121 in words is "nine hundred five billion, one hundred forty-five million, two hundred fifty thousand, one hundred twenty-one".