88140191 has 2 divisors, whose sum is σ = 88140192. Its totient is φ = 88140190.

The previous prime is 88140167. The next prime is 88140203. The reversal of 88140191 is 19104188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88140191 - 2¹⁴ = 88123807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88140491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44070095 + 44070096.

It is an arithmetic number, because the mean of its divisors is an integer number (44070096).

Almost surely, 2^88140191 is an apocalyptic number.

88140191 is a deficient number, since it is larger than the sum of its proper divisors (1).

88140191 is an equidigital number, since it uses as much as digits as its factorization.

88140191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 88140191 is about 9388.3007514672. The cubic root of 88140191 is about 445.0320912766.

The spelling of 88140191 in words is "eighty-eight million, one hundred forty thousand, one hundred ninety-one".