1922430139 has 4 divisors (see below), whose sum is σ = 2197063024. Its totient is φ = 1647797256.

The previous prime is 1922430131. The next prime is 1922430173. The reversal of 1922430139 is 9310342291.

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

It is not a de Polignac number, because 1922430139 - 2³ = 1922430131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1922430131) 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 3 ways as a sum of consecutive naturals, for example, 137316432 + ... + 137316445.

It is an arithmetic number, because the mean of its divisors is an integer number (549265756).

Almost surely, 2^1922430139 is an apocalyptic number.

1922430139 is a deficient number, since it is larger than the sum of its proper divisors (274632885).

1922430139 is an equidigital number, since it uses as much as digits as its factorization.

1922430139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274632884.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1922430139 is about 43845.5258720887. The cubic root of 1922430139 is about 1243.4171567822.

The spelling of 1922430139 in words is "one billion, nine hundred twenty-two million, four hundred thirty thousand, one hundred thirty-nine".