140002469 has 4 divisors (see below), whose sum is σ = 147371040. Its totient is φ = 132633900.

The previous prime is 140002409. The next prime is 140002483. The reversal of 140002469 is 964200041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140002469 - 2²⁴ = 123225253 is a prime.

It is a super-2 number, since 2×140002469² = 39201382652191922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140002409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684257 + ... + 3684294.

It is an arithmetic number, because the mean of its divisors is an integer number (36842760).

Almost surely, 2^140002469 is an apocalyptic number.

140002469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140002469 is a deficient number, since it is larger than the sum of its proper divisors (7368571).

140002469 is an equidigital number, since it uses as much as digits as its factorization.

140002469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368570.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 140002469 is about 11832.2639000320. The cubic root of 140002469 is about 519.2524626119.

The spelling of 140002469 in words is "one hundred forty million, two thousand, four hundred sixty-nine".