148743289 has 4 divisors (see below), whose sum is σ = 149914624. Its totient is φ = 147571956.

The previous prime is 148743271. The next prime is 148743299. The reversal of 148743289 is 982347841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982347841 = 12919 ⋅76039.

It is a cyclic number.

It is not a de Polignac number, because 148743289 - 2²³ = 140354681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148743269) 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, 585477 + ... + 585730.

It is an arithmetic number, because the mean of its divisors is an integer number (37478656).

Almost surely, 2^148743289 is an apocalyptic number.

It is an amenable number.

148743289 is a deficient number, since it is larger than the sum of its proper divisors (1171335).

148743289 is a wasteful number, since it uses less digits than its factorization.

148743289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171334.

The product of its digits is 387072, while the sum is 46.

The square root of 148743289 is about 12196.0357903706. The cubic root of 148743289 is about 529.8412827222.

The spelling of 148743289 in words is "one hundred forty-eight million, seven hundred forty-three thousand, two hundred eighty-nine".