140290 has 8 divisors (see below), whose sum is σ = 252540. Its totient is φ = 56112.

The previous prime is 140281. The next prime is 140297. The reversal of 140290 is 92041.

It can be written as a sum of positive squares in 2 ways, for example, as 120409 + 19881 = 347^2 + 141^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7005 + ... + 7024.

2¹⁴⁰²⁹⁰ is an apocalyptic number.

140290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140290 is a deficient number, since it is larger than the sum of its proper divisors (112250).

140290 is a wasteful number, since it uses less digits than its factorization.

140290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14036.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 140290 is about 374.5530670012. The cubic root of 140290 is about 51.9607692268.

The spelling of 140290 in words is "one hundred forty thousand, two hundred ninety".