148821299 has 4 divisors (see below), whose sum is σ = 162350520. Its totient is φ = 135292080.

The previous prime is 148821269. The next prime is 148821313. The reversal of 148821299 is 992128841.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-148821299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148821229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6764594 + ... + 6764615.

It is an arithmetic number, because the mean of its divisors is an integer number (40587630).

Almost surely, 2^148821299 is an apocalyptic number.

148821299 is a deficient number, since it is larger than the sum of its proper divisors (13529221).

148821299 is a wasteful number, since it uses less digits than its factorization.

148821299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529220.

The product of its digits is 82944, while the sum is 44.

The square root of 148821299 is about 12199.2335414976. The cubic root of 148821299 is about 529.9338934993.

The spelling of 148821299 in words is "one hundred forty-eight million, eight hundred twenty-one thousand, two hundred ninety-nine".