1970778134 has 24 divisors (see below), whose sum is σ = 3199824768. Its totient is φ = 904967280.

The previous prime is 1970778127. The next prime is 1970778149. The reversal of 1970778134 is 4318770791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1339019 + ... + 1340489.

It is an arithmetic number, because the mean of its divisors is an integer number (133326032).

Almost surely, 2^1970778134 is an apocalyptic number.

1970778134 is a deficient number, since it is larger than the sum of its proper divisors (1229046634).

1970778134 is a wasteful number, since it uses less digits than its factorization.

1970778134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 1970778134 is about 44393.4469713718. The cubic root of 1970778134 is about 1253.7547123358.

The spelling of 1970778134 in words is "one billion, nine hundred seventy million, seven hundred seventy-eight thousand, one hundred thirty-four".