63071149 has 4 divisors (see below), whose sum is σ = 63148060. Its totient is φ = 62994240.

The previous prime is 63071137. The next prime is 63071159. The reversal of 63071149 is 94117036.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14768649 + 48302500 = 3843^2 + 6950^2 .

It is a cyclic number.

It is not a de Polignac number, because 63071149 - 2¹⁷ = 62940077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63071149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63071159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37212 + ... + 38869.

It is an arithmetic number, because the mean of its divisors is an integer number (15787015).

Almost surely, 2^63071149 is an apocalyptic number.

It is an amenable number.

63071149 is a deficient number, since it is larger than the sum of its proper divisors (76911).

63071149 is an equidigital number, since it uses as much as digits as its factorization.

63071149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76910.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 63071149 is about 7941.7346341967. The cubic root of 63071149 is about 398.0554559393.

The spelling of 63071149 in words is "sixty-three million, seventy-one thousand, one hundred forty-nine".