1387973134 has 16 divisors (see below), whose sum is σ = 2173288320. Its totient is φ = 663566200.

The previous prime is 1387973131. The next prime is 1387973159. The reversal of 1387973134 is 4313797831.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387973131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201357 + ... + 208135.

It is an arithmetic number, because the mean of its divisors is an integer number (135830520).

Almost surely, 2^1387973134 is an apocalyptic number.

1387973134 is a deficient number, since it is larger than the sum of its proper divisors (785315186).

1387973134 is a wasteful number, since it uses less digits than its factorization.

1387973134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11255.

The product of its digits is 381024, while the sum is 46.

The square root of 1387973134 is about 37255.5114580380. The cubic root of 1387973134 is about 1115.4763149583.

The spelling of 1387973134 in words is "one billion, three hundred eighty-seven million, nine hundred seventy-three thousand, one hundred thirty-four".