754100520121 has 16 divisors (see below), whose sum is σ = 858616718400. Its totient is φ = 656551182528.

The previous prime is 754100520109. The next prime is 754100520137. The reversal of 754100520121 is 121025001457.

It is a cyclic number.

It is not a de Polignac number, because 754100520121 - 2²⁷ = 753966302393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 754100520121.

It is not an unprimeable number, because it can be changed into a prime (754100520421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6668686 + ... + 6780823.

It is an arithmetic number, because the mean of its divisors is an integer number (53663544900).

Almost surely, 2^754100520121 is an apocalyptic number.

It is an amenable number.

754100520121 is a deficient number, since it is larger than the sum of its proper divisors (104516198279).

754100520121 is a wasteful number, since it uses less digits than its factorization.

754100520121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449768.

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 754100520121 its reverse (121025001457), we get a palindrome (875125521578).

The spelling of 754100520121 in words is "seven hundred fifty-four billion, one hundred million, five hundred twenty thousand, one hundred twenty-one".