2140551019 has 4 divisors (see below), whose sum is σ = 2140750296. Its totient is φ = 2140351744.

The previous prime is 2140551011. The next prime is 2140551029. The reversal of 2140551019 is 9101550412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140551019 - 2³ = 2140551011 is a prime.

It is a super-2 number, since 2×2140551019² = 9163917329883876722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140551011) 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, 82549 + ... + 105334.

It is an arithmetic number, because the mean of its divisors is an integer number (535187574).

Almost surely, 2^2140551019 is an apocalyptic number.

2140551019 is a deficient number, since it is larger than the sum of its proper divisors (199277).

2140551019 is a wasteful number, since it uses less digits than its factorization.

2140551019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199276.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 2140551019 is about 46266.0892987510. The cubic root of 2140551019 is about 1288.7693367034.

The spelling of 2140551019 in words is "two billion, one hundred forty million, five hundred fifty-one thousand, nineteen".