140462347 has 4 divisors (see below), whose sum is σ = 148724856. Its totient is φ = 132199840.

The previous prime is 140462339. The next prime is 140462363. The reversal of 140462347 is 743264041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743264041 = 13 ⋅57174157.

It is a cyclic number.

It is not a de Polignac number, because 140462347 - 2³ = 140462339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140462947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4131229 + ... + 4131262.

It is an arithmetic number, because the mean of its divisors is an integer number (37181214).

Almost surely, 2^140462347 is an apocalyptic number.

140462347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

140462347 is a deficient number, since it is larger than the sum of its proper divisors (8262509).

140462347 is an equidigital number, since it uses as much as digits as its factorization.

140462347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262508.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 140462347 is about 11851.6811887597. The cubic root of 140462347 is about 519.8203854512.

The spelling of 140462347 in words is "one hundred forty million, four hundred sixty-two thousand, three hundred forty-seven".