148851823 has 4 divisors (see below), whose sum is σ = 151073560. Its totient is φ = 146630088.

The previous prime is 148851737. The next prime is 148851827. The reversal of 148851823 is 328158841.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148851823 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 (148851827) 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 in 3 ways as a sum of consecutive naturals, for example, 1110768 + ... + 1110901.

It is an arithmetic number, because the mean of its divisors is an integer number (37768390).

Almost surely, 2^148851823 is an apocalyptic number.

148851823 is a deficient number, since it is larger than the sum of its proper divisors (2221737).

148851823 is an equidigital number, since it uses as much as digits as its factorization.

148851823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221736.

The product of its digits is 61440, while the sum is 40.

The square root of 148851823 is about 12200.4845395583. The cubic root of 148851823 is about 529.9701217285.

The spelling of 148851823 in words is "one hundred forty-eight million, eight hundred fifty-one thousand, eight hundred twenty-three".