147989226 has 64 divisors (see below), whose sum is σ = 380952576. Its totient is φ = 37195200.

The previous prime is 147989201. The next prime is 147989263. The reversal of 147989226 is 622989741.

It is a super-2 number, since 2×147989226² = 43801622024158152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9156 + ... + 19488.

It is an arithmetic number, because the mean of its divisors is an integer number (5952384).

Almost surely, 2^147989226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147989226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190476288).

147989226 is an abundant number, since it is smaller than the sum of its proper divisors (232963350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147989226 is a wasteful number, since it uses less digits than its factorization.

147989226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10387.

The product of its digits is 435456, while the sum is 48.

The square root of 147989226 is about 12165.0822438650. The cubic root of 147989226 is about 528.9444114053.

The spelling of 147989226 in words is "one hundred forty-seven million, nine hundred eighty-nine thousand, two hundred twenty-six".