147638507 has 8 divisors (see below), whose sum is σ = 153289200. Its totient is φ = 142025184.

The previous prime is 147638503. The next prime is 147638527. The reversal of 147638507 is 705836741.

147638507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 147638507 - 2² = 147638503 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147638501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157 + ... + 17222.

It is an arithmetic number, because the mean of its divisors is an integer number (19161150).

Almost surely, 2^147638507 is an apocalyptic number.

147638507 is a deficient number, since it is larger than the sum of its proper divisors (5650693).

147638507 is a wasteful number, since it uses less digits than its factorization.

147638507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18685.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 147638507 is about 12150.6587064241. The cubic root of 147638507 is about 528.5262332257.

The spelling of 147638507 in words is "one hundred forty-seven million, six hundred thirty-eight thousand, five hundred seven".