169003481 has 2 divisors, whose sum is σ = 169003482. Its totient is φ = 169003480.

The previous prime is 169003469. The next prime is 169003529. The reversal of 169003481 is 184300961.

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., 169000000 + 3481 = 13000^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 169003481 - 2¹⁴ = 168987097 is a prime.

It is a super-2 number, since 2×169003481² = 57124353180234722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (169003421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84501740 + 84501741.

It is an arithmetic number, because the mean of its divisors is an integer number (84501741).

Almost surely, 2^169003481 is an apocalyptic number.

It is an amenable number.

169003481 is a deficient number, since it is larger than the sum of its proper divisors (1).

169003481 is an equidigital number, since it uses as much as digits as its factorization.

169003481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 169003481 is about 13000.1338839260. The cubic root of 169003481 is about 552.8812773310.

It can be divided in two parts, 16900 and 3481, that multiplied together give a square (58828900 = 7670²).

The spelling of 169003481 in words is "one hundred sixty-nine million, three thousand, four hundred eighty-one".