161502007 has 2 divisors, whose sum is σ = 161502008. Its totient is φ = 161502006.

The previous prime is 161501987. The next prime is 161502013. The reversal of 161502007 is 700205161.

It is a strong prime.

It is an emirp because it is prime and its reverse (700205161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161502007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161502017) 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, 80751003 + 80751004.

It is an arithmetic number, because the mean of its divisors is an integer number (80751004).

Almost surely, 2^161502007 is an apocalyptic number.

161502007 is a deficient number, since it is larger than the sum of its proper divisors (1).

161502007 is an equidigital number, since it uses as much as digits as its factorization.

161502007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 161502007 is about 12708.3439912524. The cubic root of 161502007 is about 544.5770160188.

Adding to 161502007 its reverse (700205161), we get a palindrome (861707168).

The spelling of 161502007 in words is "one hundred sixty-one million, five hundred two thousand, seven".