4945015140121 has 27 divisors (see below), whose sum is σ = 5773026761877. Its totient is φ = 4223414058360.

The previous prime is 4945015140097. The next prime is 4945015140139. The reversal of 4945015140121 is 1210415105494.

The square root of 4945015140121 is 2223739.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4945015140121 - 2²¹ = 4945013042969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4945015140181) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7642990620 + ... + 7642991266.

Almost surely, 2^{4945015140121} is an apocalyptic number.

4945015140121 is the 2223739-th square number.

4945015140121 is the 1111870-th centered octagonal number.

It is an amenable number.

4945015140121 is a deficient number, since it is larger than the sum of its proper divisors (828011621756).

4945015140121 is an frugal number, since it uses more digits than its factorization.

4945015140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 4945015140121 in words is "four trillion, nine hundred forty-five billion, fifteen million, one hundred forty thousand, one hundred twenty-one".