147020045 has 4 divisors (see below), whose sum is σ = 176424060. Its totient is φ = 117616032.

The previous prime is 147020023. The next prime is 147020047. The reversal of 147020045 is 540020741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107039716 + 39980329 = 10346^2 + 6323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147020045 is a prime.

It is a super-2 number, since 2×147020045² = 43229787263604050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147020045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147020047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14702000 + ... + 14702009.

It is an arithmetic number, because the mean of its divisors is an integer number (44106015).

Almost surely, 2^147020045 is an apocalyptic number.

It is an amenable number.

147020045 is a deficient number, since it is larger than the sum of its proper divisors (29404015).

147020045 is an equidigital number, since it uses as much as digits as its factorization.

147020045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29404014.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 147020045 is about 12125.1822666713. The cubic root of 147020045 is about 527.7871963929.

Adding to 147020045 its reverse (540020741), we get a palindrome (687040786).

The spelling of 147020045 in words is "one hundred forty-seven million, twenty thousand, forty-five".