140345345 has 16 divisors (see below), whose sum is σ = 195187968. Its totient is φ = 94879680.

The previous prime is 140345321. The next prime is 140345351. The reversal of 140345345 is 543543041.

It is not a de Polignac number, because 140345345 - 2⁸ = 140345089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25754 + ... + 30723.

It is an arithmetic number, because the mean of its divisors is an integer number (12199248).

It is a Proth number, since it is equal to 4283 ⋅ 2¹⁵ + 1 and 4283 < 2¹⁵.

Almost surely, 2^140345345 is an apocalyptic number.

It is an amenable number.

140345345 is a deficient number, since it is larger than the sum of its proper divisors (54842623).

140345345 is an equidigital number, since it uses as much as digits as its factorization.

140345345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56560.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 140345345 is about 11846.7440674643. The cubic root of 140345345 is about 519.6760124310.

Adding to 140345345 its reverse (543543041), we get a palindrome (683888386).

The spelling of 140345345 in words is "one hundred forty million, three hundred forty-five thousand, three hundred forty-five".