140517814 has 4 divisors (see below), whose sum is σ = 210776724. Its totient is φ = 70258906.

The previous prime is 140517809. The next prime is 140517841. The reversal of 140517814 is 418715041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418715041 = 61 ⋅6864181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35129452 + ... + 35129455.

It is an arithmetic number, because the mean of its divisors is an integer number (52694181).

Almost surely, 2^140517814 is an apocalyptic number.

140517814 is a deficient number, since it is larger than the sum of its proper divisors (70258910).

140517814 is an equidigital number, since it uses as much as digits as its factorization.

140517814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70258909.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 140517814 is about 11854.0210055491. The cubic root of 140517814 is about 519.8888001866. Note that the first 4 decimals are identical.

The spelling of 140517814 in words is "one hundred forty million, five hundred seventeen thousand, eight hundred fourteen".