2119974521 has 8 divisors (see below), whose sum is σ = 2423978880. Its totient is φ = 1816257888.

The previous prime is 2119974509. The next prime is 2119974523. The reversal of 2119974521 is 1254799112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2119974521 - 2²⁶ = 2052865657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2119974523) 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, 55901 + ... + 85818.

It is an arithmetic number, because the mean of its divisors is an integer number (302997360).

Almost surely, 2^2119974521 is an apocalyptic number.

It is an amenable number.

2119974521 is a deficient number, since it is larger than the sum of its proper divisors (304004359).

2119974521 is a wasteful number, since it uses less digits than its factorization.

2119974521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143863.

The product of its digits is 45360, while the sum is 41.

The square root of 2119974521 is about 46043.1810477947. The cubic root of 2119974521 is about 1284.6265112878.

The spelling of 2119974521 in words is "two billion, one hundred nineteen million, nine hundred seventy-four thousand, five hundred twenty-one".