47090149 has 2 divisors, whose sum is σ = 47090150. Its totient is φ = 47090148.

The previous prime is 47090143. The next prime is 47090161. The reversal of 47090149 is 94109074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 986049 = 6790^2 + 993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47090149 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47090143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23545074 + 23545075.

It is an arithmetic number, because the mean of its divisors is an integer number (23545075).

Almost surely, 2^47090149 is an apocalyptic number.

It is an amenable number.

47090149 is a deficient number, since it is larger than the sum of its proper divisors (1).

47090149 is an equidigital number, since it uses as much as digits as its factorization.

47090149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 47090149 is about 6862.2262422628. The cubic root of 47090149 is about 361.1131926104.

The spelling of 47090149 in words is "forty-seven million, ninety thousand, one hundred forty-nine".