2150430521 has 4 divisors (see below), whose sum is σ = 2276926452. Its totient is φ = 2023934592.

The previous prime is 2150430479. The next prime is 2150430523. The reversal of 2150430521 is 1250340512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 587335225 + 1563095296 = 24235^2 + 39536^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2150430521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150430523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63247940 + ... + 63247973.

It is an arithmetic number, because the mean of its divisors is an integer number (569231613).

Almost surely, 2^2150430521 is an apocalyptic number.

It is an amenable number.

2150430521 is a deficient number, since it is larger than the sum of its proper divisors (126495931).

2150430521 is a wasteful number, since it uses less digits than its factorization.

2150430521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126495930.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2150430521 is about 46372.7346724344. The cubic root of 2150430521 is about 1290.7490233701.

Subtracting from 2150430521 its reverse (1250340512), we obtain a palindrome (900090009).

It can be divided in two parts, 21504 and 30521, that added together give a palindrome (52025).

The spelling of 2150430521 in words is "two billion, one hundred fifty million, four hundred thirty thousand, five hundred twenty-one".