47287157 has 2 divisors, whose sum is σ = 47287158. Its totient is φ = 47287156.

The previous prime is 47287153. The next prime is 47287169. The reversal of 47287157 is 75178274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43546801 + 3740356 = 6599^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 47287157 - 2² = 47287153 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47287153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23643578 + 23643579.

It is an arithmetic number, because the mean of its divisors is an integer number (23643579).

Almost surely, 2^47287157 is an apocalyptic number.

It is an amenable number.

47287157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47287157 is an equidigital number, since it uses as much as digits as its factorization.

47287157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 41.

The square root of 47287157 is about 6876.5657853321. The cubic root of 47287157 is about 361.6160805698.

The spelling of 47287157 in words is "forty-seven million, two hundred eighty-seven thousand, one hundred fifty-seven".