140036135251 has 4 divisors (see below), whose sum is σ = 140164492104. Its totient is φ = 139907778400.

The previous prime is 140036135219. The next prime is 140036135263. The reversal of 140036135251 is 152531630041.

140036135251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 140036135251 - 2⁵ = 140036135219 is a prime.

It is a super-2 number, since 2×140036135251² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140036138251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64176790 + ... + 64178971.

It is an arithmetic number, because the mean of its divisors is an integer number (35041123026).

Almost surely, 2^140036135251 is an apocalyptic number.

140036135251 is a deficient number, since it is larger than the sum of its proper divisors (128356853).

140036135251 is a wasteful number, since it uses less digits than its factorization.

140036135251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128356852.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 140036135251 its reverse (152531630041), we get a palindrome (292567765292).

The spelling of 140036135251 in words is "one hundred forty billion, thirty-six million, one hundred thirty-five thousand, two hundred fifty-one".