140007145 has 8 divisors (see below), whose sum is σ = 168429960. Its totient is φ = 111724800.

The previous prime is 140007107. The next prime is 140007163. The reversal of 140007145 is 541700041.

It can be written as a sum of positive squares in 4 ways, for example, as 14992384 + 125014761 = 3872^2 + 11181^2 .

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

It is not a de Polignac number, because 140007145 - 2¹⁷ = 139876073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32910 + ... + 36919.

It is an arithmetic number, because the mean of its divisors is an integer number (21053745).

Almost surely, 2^140007145 is an apocalyptic number.

It is an amenable number.

140007145 is a deficient number, since it is larger than the sum of its proper divisors (28422815).

140007145 is an equidigital number, since it uses as much as digits as its factorization.

140007145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70235.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 140007145 is about 11832.4614937045. The cubic root of 140007145 is about 519.2582434564.

Adding to 140007145 its reverse (541700041), we get a palindrome (681707186).

The spelling of 140007145 in words is "one hundred forty million, seven thousand, one hundred forty-five".