140250465 has 24 divisors (see below), whose sum is σ = 245469120. Its totient is φ = 74071584.

The previous prime is 140250421. The next prime is 140250469. The reversal of 140250465 is 564052041.

It is not a de Polignac number, because 140250465 - 2⁶ = 140250401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140250469) 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 23 ways as a sum of consecutive naturals, for example, 10495 + ... + 19764.

It is an arithmetic number, because the mean of its divisors is an integer number (10227880).

Almost surely, 2^140250465 is an apocalyptic number.

140250465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140250465 is a deficient number, since it is larger than the sum of its proper divisors (105218655).

140250465 is a wasteful number, since it uses less digits than its factorization.

140250465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30373 (or 30370 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 140250465 is about 11842.7389146261. The cubic root of 140250465 is about 519.5588776221.

It can be divided in two parts, 140250 and 465, that added together give a triangular number (140715 = T₅₃₀).

The spelling of 140250465 in words is "one hundred forty million, two hundred fifty thousand, four hundred sixty-five".