140624489 has 8 divisors (see below), whose sum is σ = 142652328. Its totient is φ = 138608640.

The previous prime is 140624479. The next prime is 140624543. The reversal of 140624489 is 984426041.

It can be written as a sum of positive squares in 4 ways, for example, as 104203264 + 36421225 = 10208^2 + 6035^2 .

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 140624489 - 2¹⁶ = 140558953 is a prime.

It is a super-2 number, since 2×140624489² = 39550493813022242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140624479) 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, 22109 + ... + 27749.

It is an arithmetic number, because the mean of its divisors is an integer number (17831541).

Almost surely, 2^140624489 is an apocalyptic number.

It is an amenable number.

140624489 is a deficient number, since it is larger than the sum of its proper divisors (2027839).

140624489 is an equidigital number, since it uses as much as digits as its factorization.

140624489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 140624489 is about 11858.5196799601. The cubic root of 140624489 is about 520.0203258820.

The spelling of 140624489 in words is "one hundred forty million, six hundred twenty-four thousand, four hundred eighty-nine".