140252345 has 8 divisors (see below), whose sum is σ = 170608776. Its totient is φ = 110664576.

The previous prime is 140252327. The next prime is 140252383. The reversal of 140252345 is 543252041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3736489 + 136515856 = 1933^2 + 11684^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140252345 - 2¹⁴ = 140235961 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 7 ways as a sum of consecutive naturals, for example, 191762 + ... + 192491.

It is an arithmetic number, because the mean of its divisors is an integer number (21326097).

Almost surely, 2^140252345 is an apocalyptic number.

It is an amenable number.

140252345 is a deficient number, since it is larger than the sum of its proper divisors (30356431).

140252345 is an equidigital number, since it uses as much as digits as its factorization.

140252345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384331.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 140252345 is about 11842.8182878908. The cubic root of 140252345 is about 519.5611991030.

The spelling of 140252345 in words is "one hundred forty million, two hundred fifty-two thousand, three hundred forty-five".