140051245 has 4 divisors (see below), whose sum is σ = 168061500. Its totient is φ = 112040992.

The previous prime is 140051213. The next prime is 140051267. The reversal of 140051245 is 542150041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74149321 + 65901924 = 8611^2 + 8118^2 .

It is a cyclic number.

It is not a de Polignac number, because 140051245 - 2⁵ = 140051213 is a prime.

It is a super-2 number, since 2×140051245² = 39228702452100050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14005120 + ... + 14005129.

It is an arithmetic number, because the mean of its divisors is an integer number (42015375).

Almost surely, 2^140051245 is an apocalyptic number.

It is an amenable number.

140051245 is a deficient number, since it is larger than the sum of its proper divisors (28010255).

140051245 is an equidigital number, since it uses as much as digits as its factorization.

140051245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28010254.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 140051245 is about 11834.3248645624. The cubic root of 140051245 is about 519.3127570662.

The spelling of 140051245 in words is "one hundred forty million, fifty-one thousand, two hundred forty-five".