140785090 has 16 divisors (see below), whose sum is σ = 257196672. Its totient is φ = 55473264.

The previous prime is 140785067. The next prime is 140785097. The reversal of 140785090 is 90587041.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (140785097) 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, 104394 + ... + 105733.

It is an arithmetic number, because the mean of its divisors is an integer number (16074792).

Almost surely, 2^140785090 is an apocalyptic number.

140785090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140785090 is a deficient number, since it is larger than the sum of its proper divisors (116411582).

140785090 is a wasteful number, since it uses less digits than its factorization.

140785090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210201.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 140785090 is about 11865.2892927227. The cubic root of 140785090 is about 520.2182146279.

The spelling of 140785090 in words is "one hundred forty million, seven hundred eighty-five thousand, ninety".