147131887 has 4 divisors (see below), whose sum is σ = 168150736. Its totient is φ = 126113040.

The previous prime is 147131879. The next prime is 147131893. The reversal of 147131887 is 788131741.

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 147131887 - 2³ = 147131879 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 (147131807) 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, 10509414 + ... + 10509427.

It is an arithmetic number, because the mean of its divisors is an integer number (42037684).

Almost surely, 2^147131887 is an apocalyptic number.

147131887 is a deficient number, since it is larger than the sum of its proper divisors (21018849).

147131887 is an equidigital number, since it uses as much as digits as its factorization.

147131887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21018848.

The product of its digits is 37632, while the sum is 40.

The square root of 147131887 is about 12129.7933618013. The cubic root of 147131887 is about 527.9209963195.

The spelling of 147131887 in words is "one hundred forty-seven million, one hundred thirty-one thousand, eight hundred eighty-seven".