140248191 has 8 divisors (see below), whose sum is σ = 187688704. Its totient is φ = 93153240.

The previous prime is 140248189. The next prime is 140248193. The reversal of 140248191 is 191842041.

It is an interprime number because it is at equal distance from previous prime (140248189) and next prime (140248193).

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

It is not a de Polignac number, because 140248191 - 2¹ = 140248189 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140248193) 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 in 7 ways as a sum of consecutive naturals, for example, 85441 + ... + 87066.

It is an arithmetic number, because the mean of its divisors is an integer number (23461088).

Almost surely, 2^140248191 is an apocalyptic number.

140248191 is a deficient number, since it is larger than the sum of its proper divisors (47440513).

140248191 is a wasteful number, since it uses less digits than its factorization.

140248191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172781.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 140248191 is about 11842.6429060409. The cubic root of 140248191 is about 519.5560695904.

The spelling of 140248191 in words is "one hundred forty million, two hundred forty-eight thousand, one hundred ninety-one".