147638477 has 8 divisors (see below), whose sum is σ = 169099392. Its totient is φ = 126270000.

The previous prime is 147638471. The next prime is 147638501. The reversal of 147638477 is 774836741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147638477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147638471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19649 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (21137424).

Almost surely, 2^147638477 is an apocalyptic number.

It is an amenable number.

147638477 is a deficient number, since it is larger than the sum of its proper divisors (21460915).

147638477 is an equidigital number, since it uses as much as digits as its factorization.

147638477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46219.

The product of its digits is 790272, while the sum is 47.

The square root of 147638477 is about 12150.6574719231. The cubic root of 147638477 is about 528.5261974270.

The spelling of 147638477 in words is "one hundred forty-seven million, six hundred thirty-eight thousand, four hundred seventy-seven".