1942279131 has 16 divisors (see below), whose sum is σ = 2805044256. Its totient is φ = 1188335616.

The previous prime is 1942279117. The next prime is 1942279133. The reversal of 1942279131 is 1319722491.

It is not a de Polignac number, because 1942279131 - 2⁶ = 1942279067 is a prime.

It is a super-2 number, since 2×1942279131² = 7544896445436230322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1942279131.

It is not an unprimeable number, because it can be changed into a prime (1942279133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137190 + ... + 150683.

It is an arithmetic number, because the mean of its divisors is an integer number (175315266).

Almost surely, 2^1942279131 is an apocalyptic number.

1942279131 is a deficient number, since it is larger than the sum of its proper divisors (862765125).

1942279131 is a wasteful number, since it uses less digits than its factorization.

1942279131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288062.

The product of its digits is 27216, while the sum is 39.

The square root of 1942279131 is about 44071.2959986429. The cubic root of 1942279131 is about 1247.6819184691.

The spelling of 1942279131 in words is "one billion, nine hundred forty-two million, two hundred seventy-nine thousand, one hundred thirty-one".