161260037 has 2 divisors, whose sum is σ = 161260038. Its totient is φ = 161260036.

The previous prime is 161260009. The next prime is 161260067. The reversal of 161260037 is 730062161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 58967041 = 10114^2 + 7679^2 .

It is a cyclic number.

It is not a de Polignac number, because 161260037 - 2⁸ = 161259781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161259988 and 161260015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161260067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80630018 + 80630019.

It is an arithmetic number, because the mean of its divisors is an integer number (80630019).

Almost surely, 2^161260037 is an apocalyptic number.

It is an amenable number.

161260037 is a deficient number, since it is larger than the sum of its proper divisors (1).

161260037 is an equidigital number, since it uses as much as digits as its factorization.

161260037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 161260037 is about 12698.8202995396. The cubic root of 161260037 is about 544.3049096705.

The spelling of 161260037 in words is "one hundred sixty-one million, two hundred sixty thousand, thirty-seven".