147224959987 has 4 divisors (see below), whose sum is σ = 168257097136. Its totient is φ = 126192822840.

The previous prime is 147224959951. The next prime is 147224959993. The reversal of 147224959987 is 789959422741.

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

It is not a de Polignac number, because 147224959987 - 2²³ = 147216571379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147224959907) 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, 10516068564 + ... + 10516068577.

It is an arithmetic number, because the mean of its divisors is an integer number (42064274284).

Almost surely, 2^147224959987 is an apocalyptic number.

147224959987 is a deficient number, since it is larger than the sum of its proper divisors (21032137149).

147224959987 is an equidigital number, since it uses as much as digits as its factorization.

147224959987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21032137148.

The product of its digits is 91445760, while the sum is 67.

The spelling of 147224959987 in words is "one hundred forty-seven billion, two hundred twenty-four million, nine hundred fifty-nine thousand, nine hundred eighty-seven".