140249951 has 2 divisors, whose sum is σ = 140249952. Its totient is φ = 140249950.

The previous prime is 140249947. The next prime is 140249959. The reversal of 140249951 is 159942041.

140249951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140249951 - 2² = 140249947 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140249959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70124975 + 70124976.

It is an arithmetic number, because the mean of its divisors is an integer number (70124976).

Almost surely, 2^140249951 is an apocalyptic number.

140249951 is a deficient number, since it is larger than the sum of its proper divisors (1).

140249951 is an equidigital number, since it uses as much as digits as its factorization.

140249951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 140249951 is about 11842.7172135452. The cubic root of 140249951 is about 519.5582429158.

The spelling of 140249951 in words is "one hundred forty million, two hundred forty-nine thousand, nine hundred fifty-one".