1501602161 has 2 divisors, whose sum is σ = 1501602162. Its totient is φ = 1501602160.

The previous prime is 1501602131. The next prime is 1501602187. The reversal of 1501602161 is 1612061051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1496219761 + 5382400 = 38681^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501602161 - 2¹⁴ = 1501585777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1501602101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750801080 + 750801081.

It is an arithmetic number, because the mean of its divisors is an integer number (750801081).

Almost surely, 2^1501602161 is an apocalyptic number.

It is an amenable number.

1501602161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501602161 is an equidigital number, since it uses as much as digits as its factorization.

1501602161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1501602161 is about 38750.5117514595. The cubic root of 1501602161 is about 1145.1216567594.

The spelling of 1501602161 in words is "one billion, five hundred one million, six hundred two thousand, one hundred sixty-one".