47401157 has 4 divisors (see below), whose sum is σ = 47836140. Its totient is φ = 46966176.

The previous prime is 47401153. The next prime is 47401177. The reversal of 47401157 is 75110474.

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 39112516 + 8288641 = 6254^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 47401157 - 2² = 47401153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47401153) 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, 217328 + ... + 217545.

It is an arithmetic number, because the mean of its divisors is an integer number (11959035).

Almost surely, 2^47401157 is an apocalyptic number.

It is an amenable number.

47401157 is a deficient number, since it is larger than the sum of its proper divisors (434983).

47401157 is a wasteful number, since it uses less digits than its factorization.

47401157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434982.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 47401157 is about 6884.8498168079. The cubic root of 47401157 is about 361.9064423528.

The spelling of 47401157 in words is "forty-seven million, four hundred one thousand, one hundred fifty-seven".