140378789 has 8 divisors (see below), whose sum is σ = 145070112. Its totient is φ = 135752400.

The previous prime is 140378747. The next prime is 140378807. The reversal of 140378789 is 987873041.

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

It is a cyclic number.

It is not a de Polignac number, because 140378789 - 2²⁴ = 123601573 is a prime.

It is a super-2 number, since 2×140378789² = 39412408802213042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140371789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11819 + ... + 20504.

It is an arithmetic number, because the mean of its divisors is an integer number (18133764).

Almost surely, 2^140378789 is an apocalyptic number.

It is an amenable number.

140378789 is a deficient number, since it is larger than the sum of its proper divisors (4691323).

140378789 is a wasteful number, since it uses less digits than its factorization.

140378789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32467.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 140378789 is about 11848.1555104582. The cubic root of 140378789 is about 519.7172883854.

The spelling of 140378789 in words is "one hundred forty million, three hundred seventy-eight thousand, seven hundred eighty-nine".