140161587 has 8 divisors (see below), whose sum is σ = 191933136. Its totient is φ = 90915552.

The previous prime is 140161579. The next prime is 140161589. The reversal of 140161587 is 785161041.

It is a happy number.

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

It is not a de Polignac number, because 140161587 - 2³ = 140161579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140161589) 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 7 ways as a sum of consecutive naturals, for example, 631248 + ... + 631469.

It is an arithmetic number, because the mean of its divisors is an integer number (23991642).

Almost surely, 2^140161587 is an apocalyptic number.

140161587 is a deficient number, since it is larger than the sum of its proper divisors (51771549).

140161587 is a wasteful number, since it uses less digits than its factorization.

140161587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262757.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 140161587 is about 11838.9858940705. The cubic root of 140161587 is about 519.4491046962.

The spelling of 140161587 in words is "one hundred forty million, one hundred sixty-one thousand, five hundred eighty-seven".