90754143121 has 4 divisors (see below), whose sum is σ = 90754846272. Its totient is φ = 90753439972.

The previous prime is 90754143101. The next prime is 90754143133. The reversal of 90754143121 is 12134145709.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 90754143121 - 2⁵ = 90754143089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90754143101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96085 + ... + 436738.

It is an arithmetic number, because the mean of its divisors is an integer number (22688711568).

Almost surely, 2^90754143121 is an apocalyptic number.

It is an amenable number.

90754143121 is a deficient number, since it is larger than the sum of its proper divisors (703151).

90754143121 is a wasteful number, since it uses less digits than its factorization.

90754143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703150.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 90754143121 in words is "ninety billion, seven hundred fifty-four million, one hundred forty-three thousand, one hundred twenty-one".