148340689 has 6 divisors (see below), whose sum is σ = 172559634. Its totient is φ = 127149120.

The previous prime is 148340677. The next prime is 148340711. The reversal of 148340689 is 986043841.

It can be written as a sum of positive squares in only one way, i.e., 88510464 + 59830225 = 9408^2 + 7735^2 .

It is not a de Polignac number, because 148340689 - 2¹⁵ = 148307921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148340609) 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, 1513632 + ... + 1513729.

It is an arithmetic number, because the mean of its divisors is an integer number (28759939).

Almost surely, 2^148340689 is an apocalyptic number.

It is an amenable number.

148340689 is a deficient number, since it is larger than the sum of its proper divisors (24218945).

148340689 is an equidigital number, since it uses as much as digits as its factorization.

148340689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027375 (or 3027368 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 148340689 is about 12179.5192433856. The cubic root of 148340689 is about 529.3628144180.

The spelling of 148340689 in words is "one hundred forty-eight million, three hundred forty thousand, six hundred eighty-nine".