164402149 has 2 divisors, whose sum is σ = 164402150. Its totient is φ = 164402148.

The previous prime is 164402107. The next prime is 164402153. The reversal of 164402149 is 941204461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160199649 + 4202500 = 12657^2 + 2050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164402149 is a prime.

It is a super-3 number, since 3×164402149³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164402149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164402159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82201074 + 82201075.

It is an arithmetic number, because the mean of its divisors is an integer number (82201075).

Almost surely, 2^164402149 is an apocalyptic number.

It is an amenable number.

164402149 is a deficient number, since it is larger than the sum of its proper divisors (1).

164402149 is an equidigital number, since it uses as much as digits as its factorization.

164402149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 164402149 is about 12821.9401418038. The cubic root of 164402149 is about 547.8174096875.

The spelling of 164402149 in words is "one hundred sixty-four million, four hundred two thousand, one hundred forty-nine".