1959197142 has 16 divisors (see below), whose sum is σ = 4478164992. Its totient is φ = 559770600.

The previous prime is 1959197083. The next prime is 1959197143. The reversal of 1959197142 is 2417919591.

It is a junction number, because it is equal to n+sod(n) for n = 1959197091 and 1959197100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959197143) 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 7 ways as a sum of consecutive naturals, for example, 23323734 + ... + 23323817.

It is an arithmetic number, because the mean of its divisors is an integer number (279885312).

Almost surely, 2^1959197142 is an apocalyptic number.

1959197142 is an abundant number, since it is smaller than the sum of its proper divisors (2518967850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1959197142 is a wasteful number, since it uses less digits than its factorization.

1959197142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46647563.

The product of its digits is 204120, while the sum is 48.

The square root of 1959197142 is about 44262.8189567723. The cubic root of 1959197142 is about 1251.2940501784.

The spelling of 1959197142 in words is "one billion, nine hundred fifty-nine million, one hundred ninety-seven thousand, one hundred forty-two".