140994587 has 4 divisors (see below), whose sum is σ = 141029856. Its totient is φ = 140959320.

The previous prime is 140994571. The next prime is 140994619. The reversal of 140994587 is 785499041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140994587 - 2⁴ = 140994571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140994547) 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, 10739 + ... + 19932.

It is an arithmetic number, because the mean of its divisors is an integer number (35257464).

Almost surely, 2^140994587 is an apocalyptic number.

140994587 is a deficient number, since it is larger than the sum of its proper divisors (35269).

140994587 is an equidigital number, since it uses as much as digits as its factorization.

140994587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35268.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 140994587 is about 11874.1141564329. The cubic root of 140994587 is about 520.4761257972.

The spelling of 140994587 in words is "one hundred forty million, nine hundred ninety-four thousand, five hundred eighty-seven".