258148489 has 3 divisors (see below), whose sum is σ = 258164557. Its totient is φ = 258132422.

The previous prime is 258148483. The next prime is 258148493. The reversal of 258148489 is 984841852.

The square root of 258148489 is 16067.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 258148489 - 2⁷ = 258148361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258148483) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8034 + ... + 24100.

Almost surely, 2^258148489 is an apocalyptic number.

258148489 is the 16067-th square number.

258148489 is the 8034-th centered octagonal number.

It is an amenable number.

258148489 is a deficient number, since it is larger than the sum of its proper divisors (16068).

258148489 is an frugal number, since it uses more digits than its factorization.

258148489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32134 (or 16067 counting only the distinct ones).

The product of its digits is 737280, while the sum is 49.

The cubic root of 258148489 is about 636.7317837999.

Multiplying 258148489 by its sum of digits (49), we get a square (12649275961 = 112469²).

The spelling of 258148489 in words is "two hundred fifty-eight million, one hundred forty-eight thousand, four hundred eighty-nine".