147838013 has 4 divisors (see below), whose sum is σ = 149146428. Its totient is φ = 146529600.

The previous prime is 147838003. The next prime is 147838021. The reversal of 147838013 is 310838741.

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 44063044 + 103774969 = 6638^2 + 10187^2 .

It is a cyclic number.

It is not a de Polignac number, because 147838013 - 2⁸ = 147837757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147838003) 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, 654038 + ... + 654263.

It is an arithmetic number, because the mean of its divisors is an integer number (37286607).

Almost surely, 2^147838013 is an apocalyptic number.

It is an amenable number.

147838013 is a deficient number, since it is larger than the sum of its proper divisors (1308415).

147838013 is a wasteful number, since it uses less digits than its factorization.

147838013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308414.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 147838013 is about 12158.8656132059. The cubic root of 147838013 is about 528.7641943927.

The spelling of 147838013 in words is "one hundred forty-seven million, eight hundred thirty-eight thousand, thirteen".