147287389 has 4 divisors (see below), whose sum is σ = 147521440. Its totient is φ = 147053340.

The previous prime is 147287383. The next prime is 147287407. The reversal of 147287389 is 983782741.

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.

It is a cyclic number.

It is not a de Polignac number, because 147287389 - 2³ = 147287381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147287381) 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, 116079 + ... + 117340.

It is an arithmetic number, because the mean of its divisors is an integer number (36880360).

Almost surely, 2^147287389 is an apocalyptic number.

It is an amenable number.

147287389 is a deficient number, since it is larger than the sum of its proper divisors (234051).

147287389 is an equidigital number, since it uses as much as digits as its factorization.

147287389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234050.

The product of its digits is 677376, while the sum is 49.

The square root of 147287389 is about 12136.2015886355. The cubic root of 147287389 is about 528.1069153804.

The spelling of 147287389 in words is "one hundred forty-seven million, two hundred eighty-seven thousand, three hundred eighty-nine".