2142381751 has 8 divisors (see below), whose sum is σ = 2160755424. Its totient is φ = 2124048000.

The previous prime is 2142381737. The next prime is 2142381781. The reversal of 2142381751 is 1571832412.

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

It is not a de Polignac number, because 2142381751 - 2⁷ = 2142381623 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 (2142381721) 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, 103251 + ... + 122251.

It is an arithmetic number, because the mean of its divisors is an integer number (270094428).

Almost surely, 2^2142381751 is an apocalyptic number.

2142381751 is a deficient number, since it is larger than the sum of its proper divisors (18373673).

2142381751 is a wasteful number, since it uses less digits than its factorization.

2142381751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19961.

The product of its digits is 13440, while the sum is 34.

The square root of 2142381751 is about 46285.8698848796. The cubic root of 2142381751 is about 1289.1366438331.

The spelling of 2142381751 in words is "two billion, one hundred forty-two million, three hundred eighty-one thousand, seven hundred fifty-one".