148345389 has 6 divisors (see below), whose sum is σ = 214276686. Its totient is φ = 98896920.

The previous prime is 148345363. The next prime is 148345391. The reversal of 148345389 is 983543841.

148345389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 76265289 + 72080100 = 8733^2 + 8490^2 .

It is not a de Polignac number, because 148345389 - 2⁸ = 148345133 is a prime.

It is a super-2 number, since 2×148345389² = 44012708875122642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148345889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8241402 + ... + 8241419.

It is an arithmetic number, because the mean of its divisors is an integer number (35712781).

Almost surely, 2^148345389 is an apocalyptic number.

It is an amenable number.

148345389 is a deficient number, since it is larger than the sum of its proper divisors (65931297).

148345389 is a wasteful number, since it uses less digits than its factorization.

148345389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482827 (or 16482824 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 148345389 is about 12179.7121887178. The cubic root of 148345389 is about 529.3684051047.

The spelling of 148345389 in words is "one hundred forty-eight million, three hundred forty-five thousand, three hundred eighty-nine".