140263465 has 8 divisors (see below), whose sum is σ = 168379848. Its totient is φ = 112168320.

The previous prime is 140263451. The next prime is 140263469. The reversal of 140263465 is 564362041.

It can be written as a sum of positive squares in 4 ways, for example, as 63297936 + 76965529 = 7956^2 + 8773^2 .

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

It is not a de Polignac number, because 140263465 - 2⁹ = 140262953 is a prime.

It is a super-2 number, since 2×140263465² = 39347679227612450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140263469) 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, 22045 + ... + 27685.

It is an arithmetic number, because the mean of its divisors is an integer number (21047481).

Almost surely, 2^140263465 is an apocalyptic number.

It is an amenable number.

140263465 is a deficient number, since it is larger than the sum of its proper divisors (28116383).

140263465 is an equidigital number, since it uses as much as digits as its factorization.

140263465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10619.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 140263465 is about 11843.2877614284. The cubic root of 140263465 is about 519.5749299913.

The spelling of 140263465 in words is "one hundred forty million, two hundred sixty-three thousand, four hundred sixty-five".