47240122 has 4 divisors (see below), whose sum is σ = 70860186. Its totient is φ = 23620060.

The previous prime is 47240117. The next prime is 47240129. The reversal of 47240122 is 22104274.

It is a happy number.

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., 40691641 + 6548481 = 6379^2 + 2559^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 47240093 and 47240102.

It is not an unprimeable number, because it can be changed into a prime (47240129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11810029 + ... + 11810032.

Almost surely, 2^47240122 is an apocalyptic number.

47240122 is a deficient number, since it is larger than the sum of its proper divisors (23620064).

47240122 is a wasteful number, since it uses less digits than its factorization.

47240122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23620063.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 47240122 is about 6873.1449861035. The cubic root of 47240122 is about 361.4961448702.

Adding to 47240122 its reverse (22104274), we get a palindrome (69344396).

The spelling of 47240122 in words is "forty-seven million, two hundred forty thousand, one hundred twenty-two".