67280149 has 2 divisors, whose sum is σ = 67280150. Its totient is φ = 67280148.

The previous prime is 67280131. The next prime is 67280153. The reversal of 67280149 is 94108276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53553124 + 13727025 = 7318^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 67280149 - 2⁵ = 67280117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67280449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33640074 + 33640075.

It is an arithmetic number, because the mean of its divisors is an integer number (33640075).

Almost surely, 2^67280149 is an apocalyptic number.

It is an amenable number.

67280149 is a deficient number, since it is larger than the sum of its proper divisors (1).

67280149 is an equidigital number, since it uses as much as digits as its factorization.

67280149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 67280149 is about 8202.4477444236. The cubic root of 67280149 is about 406.7201117462.

The spelling of 67280149 in words is "sixty-seven million, two hundred eighty thousand, one hundred forty-nine".