147449671631 has 4 divisors (see below), whose sum is σ = 148388841672. Its totient is φ = 146510501592.

The previous prime is 147449671609. The next prime is 147449671661. The reversal of 147449671631 is 136176944741.

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 147449671631 - 2¹⁴ = 147449655247 is a prime.

It is a super-2 number, since 2×147449671631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147449671661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469584785 + ... + 469585098.

It is an arithmetic number, because the mean of its divisors is an integer number (37097210418).

Almost surely, 2^147449671631 is an apocalyptic number.

147449671631 is a deficient number, since it is larger than the sum of its proper divisors (939170041).

147449671631 is an equidigital number, since it uses as much as digits as its factorization.

147449671631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939170040.

The product of its digits is 3048192, while the sum is 53.

The spelling of 147449671631 in words is "one hundred forty-seven billion, four hundred forty-nine million, six hundred seventy-one thousand, six hundred thirty-one".