147917474 has 4 divisors (see below), whose sum is σ = 221876214. Its totient is φ = 73958736.

The previous prime is 147917449. The next prime is 147917503. The reversal of 147917474 is 474719741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474719741 = 181 ⋅2622761.

It can be written as a sum of positive squares in only one way, i.e., 123365449 + 24552025 = 11107^2 + 4955^2 .

It is a super-2 number, since 2×147917474² = 43759158229081352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36979367 + ... + 36979370.

Almost surely, 2^147917474 is an apocalyptic number.

147917474 is a deficient number, since it is larger than the sum of its proper divisors (73958740).

147917474 is an equidigital number, since it uses as much as digits as its factorization.

147917474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73958739.

The product of its digits is 197568, while the sum is 44.

The square root of 147917474 is about 12162.1327899345. The cubic root of 147917474 is about 528.8589120397.

The spelling of 147917474 in words is "one hundred forty-seven million, nine hundred seventeen thousand, four hundred seventy-four".