664150229 has 2 divisors, whose sum is σ = 664150230. Its totient is φ = 664150228.

The previous prime is 664150217. The next prime is 664150241. The reversal of 664150229 is 922051466.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (664150217) and next prime (664150241).

It can be written as a sum of positive squares in only one way, i.e., 624900004 + 39250225 = 24998^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 664150229 - 2⁴ = 664150213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664159229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332075114 + 332075115.

It is an arithmetic number, because the mean of its divisors is an integer number (332075115).

Almost surely, 2^664150229 is an apocalyptic number.

It is an amenable number.

664150229 is a deficient number, since it is larger than the sum of its proper divisors (1).

664150229 is an equidigital number, since it uses as much as digits as its factorization.

664150229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 664150229 is about 25771.1122965230. The cubic root of 664150229 is about 872.4799234577.

The spelling of 664150229 in words is "six hundred sixty-four million, one hundred fifty thousand, two hundred twenty-nine".