148845491 has 2 divisors, whose sum is σ = 148845492. Its totient is φ = 148845490.

The previous prime is 148845479. The next prime is 148845493. The reversal of 148845491 is 194548841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148845491 - 2⁶ = 148845427 is a prime.

Together with 148845493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148845493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74422745 + 74422746.

It is an arithmetic number, because the mean of its divisors is an integer number (74422746).

Almost surely, 2^148845491 is an apocalyptic number.

148845491 is a deficient number, since it is larger than the sum of its proper divisors (1).

148845491 is an equidigital number, since it uses as much as digits as its factorization.

148845491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 148845491 is about 12200.2250389081. The cubic root of 148845491 is about 529.9626068314.

The spelling of 148845491 in words is "one hundred forty-eight million, eight hundred forty-five thousand, four hundred ninety-one".