147642417 has 12 divisors (see below), whose sum is σ = 229666164. Its totient is φ = 90856800.

The previous prime is 147642403. The next prime is 147642421. The reversal of 147642417 is 714246741.

It is a happy number.

147642417 is a `hidden beast` number, since 1 + 4 + 7 + 642 + 4 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59582961 + 88059456 = 7719^2 + 9384^2 .

It is not a de Polignac number, because 147642417 - 2⁴ = 147642401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147642437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630834 + ... + 631067.

It is an arithmetic number, because the mean of its divisors is an integer number (19138847).

Almost surely, 2^147642417 is an apocalyptic number.

It is an amenable number.

147642417 is a deficient number, since it is larger than the sum of its proper divisors (82023747).

147642417 is a wasteful number, since it uses less digits than its factorization.

147642417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261920 (or 1261917 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 147642417 is about 12150.8196019857. The cubic root of 147642417 is about 528.5308989446.

The spelling of 147642417 in words is "one hundred forty-seven million, six hundred forty-two thousand, four hundred seventeen".