2151431050 has 24 divisors (see below), whose sum is σ = 4008650796. Its totient is φ = 859069440.

The previous prime is 2151431041. The next prime is 2151431057. The reversal of 2151431050 is 501341512.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1711228689 + 440202361 = 41367^2 + 20981^2 .

It is not an unprimeable number, because it can be changed into a prime (2151431057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8437 + ... + 66136.

Almost surely, 2^2151431050 is an apocalyptic number.

2151431050 is a deficient number, since it is larger than the sum of its proper divisors (1857219746).

2151431050 is a wasteful number, since it uses less digits than its factorization.

2151431050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75162 (or 75157 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2151431050 is about 46383.5213195376. The cubic root of 2151431050 is about 1290.9491742361.

Adding to 2151431050 its reverse (501341512), we get a palindrome (2652772562).

The spelling of 2151431050 in words is "two billion, one hundred fifty-one million, four hundred thirty-one thousand, fifty".