140454245 has 8 divisors (see below), whose sum is σ = 168669816. Its totient is φ = 112280256.

The previous prime is 140454229. The next prime is 140454271. The reversal of 140454245 is 542454041.

140454245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 86974276 + 53479969 = 9326^2 + 7313^2 .

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 140454245 - 2⁴ = 140454229 is a prime.

It is a Duffinian number.

It is a congruent 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, 2402 + ... + 16931.

It is an arithmetic number, because the mean of its divisors is an integer number (21083727).

Almost surely, 2^140454245 is an apocalyptic number.

It is an amenable number.

140454245 is a deficient number, since it is larger than the sum of its proper divisors (28215571).

140454245 is a wasteful number, since it uses less digits than its factorization.

140454245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20791.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 140454245 is about 11851.3393757837. The cubic root of 140454245 is about 519.8103906832.

The spelling of 140454245 in words is "one hundred forty million, four hundred fifty-four thousand, two hundred forty-five".