1940254159 has 4 divisors (see below), whose sum is σ = 1940342320. Its totient is φ = 1940166000.

The previous prime is 1940254109. The next prime is 1940254207. The reversal of 1940254159 is 9514520491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1940254159 - 2⁷ = 1940254031 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 (1940254109) 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, 19534 + ... + 65284.

It is an arithmetic number, because the mean of its divisors is an integer number (485085580).

Almost surely, 2^1940254159 is an apocalyptic number.

1940254159 is a deficient number, since it is larger than the sum of its proper divisors (88161).

1940254159 is an equidigital number, since it uses as much as digits as its factorization.

1940254159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88160.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 1940254159 is about 44048.3161880224. The cubic root of 1940254159 is about 1247.2481669642.

The spelling of 1940254159 in words is "one billion, nine hundred forty million, two hundred fifty-four thousand, one hundred fifty-nine".