1970867139 has 8 divisors (see below), whose sum is σ = 2628341760. Its totient is φ = 1313651976.

The previous prime is 1970867071. The next prime is 1970867147. The reversal of 1970867139 is 9317680791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1970867139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1970867091 and 1970867100.

It is not an unprimeable number, because it can be changed into a prime (1970867839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46387 + ... + 78060.

It is an arithmetic number, because the mean of its divisors is an integer number (328542720).

Almost surely, 2^1970867139 is an apocalyptic number.

1970867139 is a deficient number, since it is larger than the sum of its proper divisors (657474621).

1970867139 is a wasteful number, since it uses less digits than its factorization.

1970867139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129729.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 1970867139 is about 44394.4494165656. The cubic root of 1970867139 is about 1253.7735862273.

The spelling of 1970867139 in words is "one billion, nine hundred seventy million, eight hundred sixty-seven thousand, one hundred thirty-nine".