140869790 has 8 divisors (see below), whose sum is σ = 253565640. Its totient is φ = 56347912.

The previous prime is 140869787. The next prime is 140869811. The reversal of 140869790 is 97968041.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7043480 + ... + 7043499.

It is an arithmetic number, because the mean of its divisors is an integer number (31695705).

Almost surely, 2^140869790 is an apocalyptic number.

140869790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140869790 is a deficient number, since it is larger than the sum of its proper divisors (112695850).

140869790 is a wasteful number, since it uses less digits than its factorization.

140869790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14086986.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 140869790 is about 11868.8579905566. The cubic root of 140869790 is about 520.3225193506.

The spelling of 140869790 in words is "one hundred forty million, eight hundred sixty-nine thousand, seven hundred ninety".