140309419 has 8 divisors (see below), whose sum is σ = 142808832. Its totient is φ = 137824680.

The previous prime is 140309417. The next prime is 140309423. The reversal of 140309419 is 914903041.

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 140309419 - 2¹ = 140309417 is a prime.

It is a super-2 number, since 2×140309419² = 39373466120235122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140309417) 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, 16602 + ... + 23584.

It is an arithmetic number, because the mean of its divisors is an integer number (17851104).

Almost surely, 2^140309419 is an apocalyptic number.

140309419 is a deficient number, since it is larger than the sum of its proper divisors (2499413).

140309419 is an equidigital number, since it uses as much as digits as its factorization.

140309419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 140309419 is about 11845.2276888205. The cubic root of 140309419 is about 519.6316659329.

The spelling of 140309419 in words is "one hundred forty million, three hundred nine thousand, four hundred nineteen".