147242345 has 8 divisors (see below), whose sum is σ = 178440840. Its totient is φ = 116627200.

The previous prime is 147242327. The next prime is 147242383. The reversal of 147242345 is 543242741.

It can be written as a sum of positive squares in 4 ways, for example, as 21196816 + 126045529 = 4604^2 + 11227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147242345 - 2⁸ = 147242089 is a prime.

It is a super-2 number, since 2×147242345² = 43360616322198050, which contains 22 as substring.

It is a Curzon 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, 145280 + ... + 146289.

It is an arithmetic number, because the mean of its divisors is an integer number (22305105).

Almost surely, 2^147242345 is an apocalyptic number.

It is an amenable number.

147242345 is a deficient number, since it is larger than the sum of its proper divisors (31198495).

147242345 is a wasteful number, since it uses less digits than its factorization.

147242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291675.

The product of its digits is 26880, while the sum is 32.

The square root of 147242345 is about 12134.3456766321. The cubic root of 147242345 is about 528.0530739903.

The spelling of 147242345 in words is "one hundred forty-seven million, two hundred forty-two thousand, three hundred forty-five".