38280149 has 2 divisors, whose sum is σ = 38280150. Its totient is φ = 38280148.

The previous prime is 38280131. The next prime is 38280197. The reversal of 38280149 is 94108283.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33849124 + 4431025 = 5818^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 38280149 - 2²⁰ = 37231573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38280049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19140074 + 19140075.

It is an arithmetic number, because the mean of its divisors is an integer number (19140075).

Almost surely, 2^38280149 is an apocalyptic number.

It is an amenable number.

38280149 is a deficient number, since it is larger than the sum of its proper divisors (1).

38280149 is an equidigital number, since it uses as much as digits as its factorization.

38280149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 38280149 is about 6187.0953605064. The cubic root of 38280149 is about 337.0217064036.

The spelling of 38280149 in words is "thirty-eight million, two hundred eighty thousand, one hundred forty-nine".