140236465 has 8 divisors (see below), whose sum is σ = 168624000. Its totient is φ = 111962352.

The previous prime is 140236423. The next prime is 140236469. The reversal of 140236465 is 564632041.

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 140236465 - 2⁷ = 140236337 is a prime.

It is a super-2 number, since 2×140236465² = 39332532231392450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140236469) 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, 25609 + ... + 30598.

It is an arithmetic number, because the mean of its divisors is an integer number (21078000).

Almost surely, 2^140236465 is an apocalyptic number.

It is an amenable number.

140236465 is a deficient number, since it is larger than the sum of its proper divisors (28387535).

140236465 is an equidigital number, since it uses as much as digits as its factorization.

140236465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56711.

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

The square root of 140236465 is about 11842.1478203914. The cubic root of 140236465 is about 519.5415893459.

The spelling of 140236465 in words is "one hundred forty million, two hundred thirty-six thousand, four hundred sixty-five".