148425491 has 2 divisors, whose sum is σ = 148425492. Its totient is φ = 148425490.

The previous prime is 148425479. The next prime is 148425499. The reversal of 148425491 is 194524841.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148425491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148425499) 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, 74212745 + 74212746.

It is an arithmetic number, because the mean of its divisors is an integer number (74212746).

Almost surely, 2^148425491 is an apocalyptic number.

148425491 is a deficient number, since it is larger than the sum of its proper divisors (1).

148425491 is an equidigital number, since it uses as much as digits as its factorization.

148425491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 148425491 is about 12183.0000820816. Note that the first 4 decimals coincide. The cubic root of 148425491 is about 529.4636689084.

The spelling of 148425491 in words is "one hundred forty-eight million, four hundred twenty-five thousand, four hundred ninety-one".