140193507 has 8 divisors (see below), whose sum is σ = 189485584. Its totient is φ = 92181888.

The previous prime is 140193497. The next prime is 140193517. The reversal of 140193507 is 705391041.

It is an interprime number because it is at equal distance from previous prime (140193497) and next prime (140193517).

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

It is not a de Polignac number, because 140193507 - 2⁷ = 140193379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140193517) 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, 319858 + ... + 320295.

It is an arithmetic number, because the mean of its divisors is an integer number (23685698).

Almost surely, 2^140193507 is an apocalyptic number.

140193507 is a deficient number, since it is larger than the sum of its proper divisors (49292077).

140193507 is an equidigital number, since it uses as much as digits as its factorization.

140193507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640229.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 140193507 is about 11840.3339057647. Note that the first 3 decimals coincide. The cubic root of 140193507 is about 519.4885343223.

The spelling of 140193507 in words is "one hundred forty million, one hundred ninety-three thousand, five hundred seven".