140025251 has 2 divisors, whose sum is σ = 140025252. Its totient is φ = 140025250.

The previous prime is 140025239. The next prime is 140025271. The reversal of 140025251 is 152520041.

It is an a-pointer prime, because the next prime (140025271) can be obtained adding 140025251 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140025251 - 2¹⁴ = 140008867 is a prime.

It is a super-2 number, since 2×140025251² = 39214141835226002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140025211) by changing a digit.

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 as a sum of consecutive naturals, namely, 70012625 + 70012626.

It is an arithmetic number, because the mean of its divisors is an integer number (70012626).

Almost surely, 2^140025251 is an apocalyptic number.

140025251 is a deficient number, since it is larger than the sum of its proper divisors (1).

140025251 is an equidigital number, since it uses as much as digits as its factorization.

140025251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 140025251 is about 11833.2265675935. The cubic root of 140025251 is about 519.2806263248.

Adding to 140025251 its reverse (152520041), we get a palindrome (292545292).

The spelling of 140025251 in words is "one hundred forty million, twenty-five thousand, two hundred fifty-one".