147220472902 has 4 divisors (see below), whose sum is σ = 220830709356. Its totient is φ = 73610236450.

The previous prime is 147220472891. The next prime is 147220472951. The reversal of 147220472902 is 209274022741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209274022741 = 7 ⋅29896288963.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36805118224 + ... + 36805118227.

It is an arithmetic number, because the mean of its divisors is an integer number (55207677339).

Almost surely, 2^147220472902 is an apocalyptic number.

147220472902 is a deficient number, since it is larger than the sum of its proper divisors (73610236454).

147220472902 is an equidigital number, since it uses as much as digits as its factorization.

147220472902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73610236453.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 147220472902 in words is "one hundred forty-seven billion, two hundred twenty million, four hundred seventy-two thousand, nine hundred two".