140525304518217 has 4 divisors (see below), whose sum is σ = 187367072690960. Its totient is φ = 93683536345476.

The previous prime is 140525304518213. The next prime is 140525304518243. The reversal of 140525304518217 is 712815403525041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140525304518217 - 2² = 140525304518213 is a prime.

It is a super-2 number, since 2×140525304518217² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140525304518213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23420884086367 + ... + 23420884086372.

It is an arithmetic number, because the mean of its divisors is an integer number (46841768172740).

Almost surely, 2^{140525304518217} is an apocalyptic number.

It is an amenable number.

140525304518217 is a deficient number, since it is larger than the sum of its proper divisors (46841768172743).

140525304518217 is an equidigital number, since it uses as much as digits as its factorization.

140525304518217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46841768172742.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 140525304518217 in words is "one hundred forty trillion, five hundred twenty-five billion, three hundred four million, five hundred eighteen thousand, two hundred seventeen".