140348807 has 4 divisors (see below), whose sum is σ = 144142056. Its totient is φ = 136555560.

The previous prime is 140348779. The next prime is 140348809. The reversal of 140348807 is 708843041.

It is a happy number.

140348807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708843041 = 53 ⋅13374397.

It is a cyclic number.

It is not a de Polignac number, because 140348807 - 2¹⁸ = 140086663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140348809) 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, 1896569 + ... + 1896642.

It is an arithmetic number, because the mean of its divisors is an integer number (36035514).

Almost surely, 2^140348807 is an apocalyptic number.

140348807 is a deficient number, since it is larger than the sum of its proper divisors (3793249).

140348807 is an equidigital number, since it uses as much as digits as its factorization.

140348807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793248.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 140348807 is about 11846.8901826598. The cubic root of 140348807 is about 519.6802854704.

The spelling of 140348807 in words is "one hundred forty million, three hundred forty-eight thousand, eight hundred seven".