101949223 has 2 divisors, whose sum is σ = 101949224. Its totient is φ = 101949222.

The previous prime is 101949209. The next prime is 101949229. The reversal of 101949223 is 322949101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101949223 - 2⁵ = 101949191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101949229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50974611 + 50974612.

It is an arithmetic number, because the mean of its divisors is an integer number (50974612).

Almost surely, 2^101949223 is an apocalyptic number.

101949223 is a deficient number, since it is larger than the sum of its proper divisors (1).

101949223 is an equidigital number, since it uses as much as digits as its factorization.

101949223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 101949223 is about 10096.9907893392. The cubic root of 101949223 is about 467.1553283208.

The spelling of 101949223 in words is "one hundred one million, nine hundred forty-nine thousand, two hundred twenty-three".