140851990 has 8 divisors (see below), whose sum is σ = 253533600. Its totient is φ = 56340792.

The previous prime is 140851861. The next prime is 140851993. The reversal of 140851990 is 99158041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140851993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7042590 + ... + 7042609.

It is an arithmetic number, because the mean of its divisors is an integer number (31691700).

Almost surely, 2^140851990 is an apocalyptic number.

140851990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140851990 is a deficient number, since it is larger than the sum of its proper divisors (112681610).

140851990 is a wasteful number, since it uses less digits than its factorization.

140851990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14085206.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 140851990 is about 11868.1081053384. The cubic root of 140851990 is about 520.3006028205.

The spelling of 140851990 in words is "one hundred forty million, eight hundred fifty-one thousand, nine hundred ninety".