140987705 has 8 divisors (see below), whose sum is σ = 175019400. Its totient is φ = 108900736.

The previous prime is 140987689. The next prime is 140987713. The reversal of 140987705 is 507789041.

140987705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40246336 + 100741369 = 6344^2 + 10037^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140987705 - 2⁴ = 140987689 is a prime.

It is a super-2 number, since 2×140987705² = 39755065922334050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486020 + ... + 486309.

It is an arithmetic number, because the mean of its divisors is an integer number (21877425).

Almost surely, 2^140987705 is an apocalyptic number.

It is an amenable number.

140987705 is a deficient number, since it is larger than the sum of its proper divisors (34031695).

140987705 is an equidigital number, since it uses as much as digits as its factorization.

140987705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972363.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 140987705 is about 11873.8243628580. The cubic root of 140987705 is about 520.4676574461.

The spelling of 140987705 in words is "one hundred forty million, nine hundred eighty-seven thousand, seven hundred five".