140489569 has 8 divisors (see below), whose sum is σ = 153602208. Its totient is φ = 127433760.

The previous prime is 140489563. The next prime is 140489579. The reversal of 140489569 is 965984041.

It is a happy number.

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 140489569 - 2⁷ = 140489441 is a prime.

It is a super-2 number, since 2×140489569² = 39474637995611522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140489563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8947 + ... + 19000.

It is an arithmetic number, because the mean of its divisors is an integer number (19200276).

Almost surely, 2^140489569 is an apocalyptic number.

It is an amenable number.

140489569 is a deficient number, since it is larger than the sum of its proper divisors (13112639).

140489569 is a wasteful number, since it uses less digits than its factorization.

140489569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28415.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 140489569 is about 11852.8295777844. The cubic root of 140489569 is about 519.8539641689.

The spelling of 140489569 in words is "one hundred forty million, four hundred eighty-nine thousand, five hundred sixty-nine".