2151141389 has 4 divisors (see below), whose sum is σ = 2151514524. Its totient is φ = 2150768256.

The previous prime is 2151141371. The next prime is 2151141403. The reversal of 2151141389 is 9831411512.

It is a happy number.

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 1388829289 + 762312100 = 37267^2 + 27610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151141389 - 2⁸ = 2151141133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151141689) 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, 177782 + ... + 189495.

It is an arithmetic number, because the mean of its divisors is an integer number (537878631).

Almost surely, 2^2151141389 is an apocalyptic number.

It is an amenable number.

2151141389 is a deficient number, since it is larger than the sum of its proper divisors (373135).

2151141389 is an equidigital number, since it uses as much as digits as its factorization.

2151141389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373134.

The product of its digits is 8640, while the sum is 35.

The square root of 2151141389 is about 46380.3987585273. The cubic root of 2151141389 is about 1290.8912353723.

The spelling of 2151141389 in words is "two billion, one hundred fifty-one million, one hundred forty-one thousand, three hundred eighty-nine".