47435138 has 4 divisors (see below), whose sum is σ = 71152710. Its totient is φ = 23717568.

The previous prime is 47435137. The next prime is 47435161. The reversal of 47435138 is 83153474.

47435138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26759929 + 20675209 = 5173^2 + 4547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47435098 and 47435107.

It is not an unprimeable number, because it can be changed into a prime (47435137) 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 as a sum of consecutive naturals, namely, 11858783 + ... + 11858786.

Almost surely, 2^47435138 is an apocalyptic number.

47435138 is a deficient number, since it is larger than the sum of its proper divisors (23717572).

47435138 is a wasteful number, since it uses less digits than its factorization.

47435138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23717571.

The product of its digits is 40320, while the sum is 35.

The square root of 47435138 is about 6887.3171845066. The cubic root of 47435138 is about 361.9929030079.

The spelling of 47435138 in words is "forty-seven million, four hundred thirty-five thousand, one hundred thirty-eight".