148809893 has 4 divisors (see below), whose sum is σ = 152831820. Its totient is φ = 144787968.

The previous prime is 148809847. The next prime is 148809917. The reversal of 148809893 is 398908841.

148809893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 114211969 + 34597924 = 10687^2 + 5882^2 .

It is a cyclic number.

It is not a de Polignac number, because 148809893 - 2²⁶ = 81701029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148809803) 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, 2010908 + ... + 2010981.

It is an arithmetic number, because the mean of its divisors is an integer number (38207955).

Almost surely, 2^148809893 is an apocalyptic number.

It is an amenable number.

148809893 is a deficient number, since it is larger than the sum of its proper divisors (4021927).

148809893 is an equidigital number, since it uses as much as digits as its factorization.

148809893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021926.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 148809893 is about 12198.7660441538. The cubic root of 148809893 is about 529.9203547105.

The spelling of 148809893 in words is "one hundred forty-eight million, eight hundred nine thousand, eight hundred ninety-three".