147317238 has 16 divisors (see below), whose sum is σ = 327371760. Its totient is φ = 49105728.

The previous prime is 147317201. The next prime is 147317243. The reversal of 147317238 is 832713741.

It is a super-2 number, since 2×147317238² = 43404737223897288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363995 + ... + 1364102.

It is an arithmetic number, because the mean of its divisors is an integer number (20460735).

Almost surely, 2^147317238 is an apocalyptic number.

147317238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147317238 is an abundant number, since it is smaller than the sum of its proper divisors (180054522).

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

147317238 is a wasteful number, since it uses less digits than its factorization.

147317238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728108 (or 2728102 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 147317238 is about 12137.4312768394. The cubic root of 147317238 is about 528.1425880398.

The spelling of 147317238 in words is "one hundred forty-seven million, three hundred seventeen thousand, two hundred thirty-eight".