148989869 has 8 divisors (see below), whose sum is σ = 170563200. Its totient is φ = 127488816.

The previous prime is 148989823. The next prime is 148989871. The reversal of 148989869 is 968989841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-148989869 is a prime.

It is a super-2 number, since 2×148989869² = 44395962129274322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148980869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13574 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (21320400).

Almost surely, 2^148989869 is an apocalyptic number.

It is an amenable number.

148989869 is a deficient number, since it is larger than the sum of its proper divisors (21573331).

148989869 is an equidigital number, since it uses as much as digits as its factorization.

148989869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36139.

The product of its digits is 8957952, while the sum is 62.

The square root of 148989869 is about 12206.1406267501. The cubic root of 148989869 is about 530.1339035109.

The spelling of 148989869 in words is "one hundred forty-eight million, nine hundred eighty-nine thousand, eight hundred sixty-nine".