147214989 has 28 divisors (see below), whose sum is σ = 223299900. Its totient is φ = 96997824.

The previous prime is 147214981. The next prime is 147214993. The reversal of 147214989 is 989412741.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 131675625 = 3942^2 + 11475^2 .

It is not a de Polignac number, because 147214989 - 2³ = 147214981 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147214981) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 63747 + ... + 66015.

Almost surely, 2^147214989 is an apocalyptic number.

It is an amenable number.

147214989 is a deficient number, since it is larger than the sum of its proper divisors (76084911).

147214989 is an frugal number, since it uses more digits than its factorization.

147214989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2361 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 147214989 is about 12133.2184106279. The cubic root of 147214989 is about 528.0203698236.

It can be divided in two parts, 1472 and 14989, that added together give a palindrome (16461).

The spelling of 147214989 in words is "one hundred forty-seven million, two hundred fourteen thousand, nine hundred eighty-nine".