140715814 has 4 divisors (see below), whose sum is σ = 211073724. Its totient is φ = 70357906.

The previous prime is 140715811. The next prime is 140715829. The reversal of 140715814 is 418517041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418517041 = 67 ⋅6246523.

It is a super-3 number, since 3×140715814³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140715811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35178952 + ... + 35178955.

It is an arithmetic number, because the mean of its divisors is an integer number (52768431).

Almost surely, 2^140715814 is an apocalyptic number.

140715814 is a deficient number, since it is larger than the sum of its proper divisors (70357910).

140715814 is an equidigital number, since it uses as much as digits as its factorization.

140715814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70357909.

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

The square root of 140715814 is about 11862.3696620869. The cubic root of 140715814 is about 520.1328728495.

The spelling of 140715814 in words is "one hundred forty million, seven hundred fifteen thousand, eight hundred fourteen".