1931442134 has 4 divisors (see below), whose sum is σ = 2897163204. Its totient is φ = 965721066.

The previous prime is 1931442091. The next prime is 1931442157. The reversal of 1931442134 is 4312441391.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1931442134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482860532 + ... + 482860535.

It is an arithmetic number, because the mean of its divisors is an integer number (724290801).

Almost surely, 2^1931442134 is an apocalyptic number.

1931442134 is a deficient number, since it is larger than the sum of its proper divisors (965721070).

1931442134 is an equidigital number, since it uses as much as digits as its factorization.

1931442134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965721069.

The product of its digits is 10368, while the sum is 32.

The square root of 1931442134 is about 43948.1755480247. The cubic root of 1931442134 is about 1245.3570980406.

The spelling of 1931442134 in words is "one billion, nine hundred thirty-one million, four hundred forty-two thousand, one hundred thirty-four".