1601590537 has 2 divisors, whose sum is σ = 1601590538. Its totient is φ = 1601590536.

The previous prime is 1601590489. The next prime is 1601590583. The reversal of 1601590537 is 7350951061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038192841 + 563397696 = 32221^2 + 23736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601590537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1601590496 and 1601590505.

It is not a weakly prime, because it can be changed into another prime (1601590597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800795268 + 800795269.

It is an arithmetic number, because the mean of its divisors is an integer number (800795269).

Almost surely, 2^1601590537 is an apocalyptic number.

It is an amenable number.

1601590537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601590537 is an equidigital number, since it uses as much as digits as its factorization.

1601590537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 1601590537 is about 40019.8767739232. The cubic root of 1601590537 is about 1169.9945301325.

The spelling of 1601590537 in words is "one billion, six hundred one million, five hundred ninety thousand, five hundred thirty-seven".