147987427 has 4 divisors (see below), whose sum is σ = 169128496. Its totient is φ = 126846360.

The previous prime is 147987419. The next prime is 147987439. The reversal of 147987427 is 724789741.

It is a happy number.

147987427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147987427 - 2³ = 147987419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147907427) 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, 10570524 + ... + 10570537.

It is an arithmetic number, because the mean of its divisors is an integer number (42282124).

Almost surely, 2^147987427 is an apocalyptic number.

147987427 is a deficient number, since it is larger than the sum of its proper divisors (21141069).

147987427 is an equidigital number, since it uses as much as digits as its factorization.

147987427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21141068.

The product of its digits is 790272, while the sum is 49.

The square root of 147987427 is about 12165.0083025044. The cubic root of 147987427 is about 528.9422680626.

The spelling of 147987427 in words is "one hundred forty-seven million, nine hundred eighty-seven thousand, four hundred twenty-seven".