140552245 has 8 divisors (see below), whose sum is σ = 169142616. Its totient is φ = 112121856.

The previous prime is 140552227. The next prime is 140552249. The reversal of 140552245 is 542255041.

It can be written as a sum of positive squares in 4 ways, for example, as 5574321 + 134977924 = 2361^2 + 11618^2 .

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 140552245 - 2¹¹ = 140550197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140552249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38052 + ... + 41581.

It is an arithmetic number, because the mean of its divisors is an integer number (21142827).

Almost surely, 2^140552245 is an apocalyptic number.

It is an amenable number.

140552245 is a deficient number, since it is larger than the sum of its proper divisors (28590371).

140552245 is an equidigital number, since it uses as much as digits as its factorization.

140552245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79991.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 140552245 is about 11855.4732086071. The cubic root of 140552245 is about 519.9312594045.

The spelling of 140552245 in words is "one hundred forty million, five hundred fifty-two thousand, two hundred forty-five".