140291085 has 32 divisors (see below), whose sum is σ = 249039360. Its totient is φ = 66862400.

The previous prime is 140291083. The next prime is 140291113. The reversal of 140291085 is 580192041.

It is a happy number.

It is not a de Polignac number, because 140291085 - 2¹ = 140291083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140291083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2530 + ... + 16940.

It is an arithmetic number, because the mean of its divisors is an integer number (7782480).

Almost surely, 2^140291085 is an apocalyptic number.

140291085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140291085 is a deficient number, since it is larger than the sum of its proper divisors (108748275).

140291085 is a wasteful number, since it uses less digits than its factorization.

140291085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14489.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 140291085 is about 11844.4537653705. The cubic root of 140291085 is about 519.6090318099.

The spelling of 140291085 in words is "one hundred forty million, two hundred ninety-one thousand, eighty-five".