147566457 has 6 divisors (see below), whose sum is σ = 213151562. Its totient is φ = 98377632.

The previous prime is 147566423. The next prime is 147566467. The reversal of 147566457 is 754665741.

147566457 is a `hidden beast` number, since 1 + 47 + 566 + 45 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 141705216 + 5861241 = 11904^2 + 2421^2 .

It is not a de Polignac number, because 147566457 - 2¹² = 147562361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147566467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8198128 + ... + 8198145.

Almost surely, 2^147566457 is an apocalyptic number.

It is an amenable number.

147566457 is a deficient number, since it is larger than the sum of its proper divisors (65585105).

147566457 is a wasteful number, since it uses less digits than its factorization.

147566457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396279 (or 16396276 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 147566457 is about 12147.6934847731. The cubic root of 147566457 is about 528.4402427612.

The spelling of 147566457 in words is "one hundred forty-seven million, five hundred sixty-six thousand, four hundred fifty-seven".