148253891 has 2 divisors, whose sum is σ = 148253892. Its totient is φ = 148253890.

The previous prime is 148253863. The next prime is 148253953. The reversal of 148253891 is 198352841.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148253891 is a prime.

It is not a weakly prime, because it can be changed into another prime (148253491) 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 as a sum of consecutive naturals, namely, 74126945 + 74126946.

It is an arithmetic number, because the mean of its divisors is an integer number (74126946).

Almost surely, 2^148253891 is an apocalyptic number.

148253891 is a deficient number, since it is larger than the sum of its proper divisors (1).

148253891 is an equidigital number, since it uses as much as digits as its factorization.

148253891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 148253891 is about 12175.9554450565. The cubic root of 148253891 is about 529.2595462845.

The spelling of 148253891 in words is "one hundred forty-eight million, two hundred fifty-three thousand, eight hundred ninety-one".