32147149 has 2 divisors, whose sum is σ = 32147150. Its totient is φ = 32147148.

The previous prime is 32147131. The next prime is 32147161. The reversal of 32147149 is 94174123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31561924 + 585225 = 5618^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 32147149 - 2¹¹ = 32145101 is a prime.

It is a Chen prime.

It is equal to p_1982335 and since 32147149 and 1982335 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32147149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32147179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16073574 + 16073575.

It is an arithmetic number, because the mean of its divisors is an integer number (16073575).

Almost surely, 2^32147149 is an apocalyptic number.

It is an amenable number.

32147149 is a deficient number, since it is larger than the sum of its proper divisors (1).

32147149 is an equidigital number, since it uses as much as digits as its factorization.

32147149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 32147149 is about 5669.8455887264. The cubic root of 32147149 is about 317.9661007072.

The spelling of 32147149 in words is "thirty-two million, one hundred forty-seven thousand, one hundred forty-nine".