140646345 has 32 divisors (see below), whose sum is σ = 257789952. Its totient is φ = 64143552.

The previous prime is 140646301. The next prime is 140646347. The reversal of 140646345 is 543646041.

It is not a de Polignac number, because 140646345 - 2⁸ = 140646089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140646347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51484 + ... + 54146.

It is an arithmetic number, because the mean of its divisors is an integer number (8055936).

Almost surely, 2^140646345 is an apocalyptic number.

140646345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140646345 is a deficient number, since it is larger than the sum of its proper divisors (117143607).

140646345 is a wasteful number, since it uses less digits than its factorization.

140646345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 140646345 is about 11859.4411757047. The cubic root of 140646345 is about 520.0472651810.

The spelling of 140646345 in words is "one hundred forty million, six hundred forty-six thousand, three hundred forty-five".