2151013125 has 40 divisors (see below), whose sum is σ = 3601522144. Its totient is φ = 1141560000.

The previous prime is 2151013079. The next prime is 2151013127. The reversal of 2151013125 is 5213101512.

It is not a de Polignac number, because 2151013125 - 2⁹ = 2151012613 is a prime.

It is a super-3 number, since 3×2151013125³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151013127) 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 39 ways as a sum of consecutive naturals, for example, 392907 + ... + 398343.

Almost surely, 2^2151013125 is an apocalyptic number.

2151013125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2151013125 is a deficient number, since it is larger than the sum of its proper divisors (1450509019).

2151013125 is an equidigital number, since it uses as much as digits as its factorization.

2151013125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5656 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2151013125 is about 46379.0159986173. The cubic root of 2151013125 is about 1290.8655779600.

Adding to 2151013125 its reverse (5213101512), we get a palindrome (7364114637).

The spelling of 2151013125 in words is "two billion, one hundred fifty-one million, thirteen thousand, one hundred twenty-five".