148802491 has 2 divisors, whose sum is σ = 148802492. Its totient is φ = 148802490.

The previous prime is 148802477. The next prime is 148802503. The reversal of 148802491 is 194208841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148802491 - 2²³ = 140413883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148802491.

It is not a weakly prime, because it can be changed into another prime (148802791) 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, 74401245 + 74401246.

It is an arithmetic number, because the mean of its divisors is an integer number (74401246).

Almost surely, 2^148802491 is an apocalyptic number.

148802491 is a deficient number, since it is larger than the sum of its proper divisors (1).

148802491 is an equidigital number, since it uses as much as digits as its factorization.

148802491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 148802491 is about 12198.4626490390. The cubic root of 148802491 is about 529.9115682528.

It can be divided in two parts, 14880 and 2491, that added together give a palindrome (17371).

The spelling of 148802491 in words is "one hundred forty-eight million, eight hundred two thousand, four hundred ninety-one".