146448191 has 4 divisors (see below), whose sum is σ = 146480400. Its totient is φ = 146415984.

The previous prime is 146448179. The next prime is 146448223. The reversal of 146448191 is 191844641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146448191 - 2¹⁴ = 146431807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146448101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (36620100).

Almost surely, 2^146448191 is an apocalyptic number.

146448191 is a deficient number, since it is larger than the sum of its proper divisors (32209).

146448191 is an equidigital number, since it uses as much as digits as its factorization.

146448191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32208.

The product of its digits is 27648, while the sum is 38.

The square root of 146448191 is about 12101.5780375949. The cubic root of 146448191 is about 527.1020077698.

The spelling of 146448191 in words is "one hundred forty-six million, four hundred forty-eight thousand, one hundred ninety-one".