148266491 has 2 divisors, whose sum is σ = 148266492. Its totient is φ = 148266490.

The previous prime is 148266479. The next prime is 148266499. The reversal of 148266491 is 194662841.

It is a strong prime.

It is an emirp because it is prime and its reverse (194662841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148266491 - 2¹⁸ = 148004347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148266499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74133245 + 74133246.

It is an arithmetic number, because the mean of its divisors is an integer number (74133246).

Almost surely, 2^148266491 is an apocalyptic number.

148266491 is a deficient number, since it is larger than the sum of its proper divisors (1).

148266491 is an equidigital number, since it uses as much as digits as its factorization.

148266491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 148266491 is about 12176.4728472575. The cubic root of 148266491 is about 529.2745396659.

The spelling of 148266491 in words is "one hundred forty-eight million, two hundred sixty-six thousand, four hundred ninety-one".