160561637 has 2 divisors, whose sum is σ = 160561638. Its totient is φ = 160561636.

The previous prime is 160561633. The next prime is 160561663. The reversal of 160561637 is 736165061.

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., 160554241 + 7396 = 12671^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 160561637 - 2² = 160561633 is a prime.

It is a super-2 number, since 2×160561637² = 51560078552239538, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 160561597 and 160561606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160561631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80280818 + 80280819.

It is an arithmetic number, because the mean of its divisors is an integer number (80280819).

Almost surely, 2^160561637 is an apocalyptic number.

It is an amenable number.

160561637 is a deficient number, since it is larger than the sum of its proper divisors (1).

160561637 is an equidigital number, since it uses as much as digits as its factorization.

160561637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 160561637 is about 12671.2918441649. The cubic root of 160561637 is about 543.5179970834.

The spelling of 160561637 in words is "one hundred sixty million, five hundred sixty-one thousand, six hundred thirty-seven".