3158761 has 2 divisors, whose sum is σ = 3158762. Its totient is φ = 3158760.

The previous prime is 3158759. The next prime is 3158791. The reversal of 3158761 is 1678513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 534361 = 1620^2 + 731^2 .

It is a cyclic number.

It is not a de Polignac number, because 3158761 - 2¹ = 3158759 is a prime.

Together with 3158759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3158791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579380 + 1579381.

It is an arithmetic number, because the mean of its divisors is an integer number (1579381).

Almost surely, 2^3158761 is an apocalyptic number.

It is an amenable number.

3158761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158761 is an equidigital number, since it uses as much as digits as its factorization.

3158761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 3158761 is about 1777.2903533188. The cubic root of 3158761 is about 146.7254969455.

The spelling of 3158761 in words is "three million, one hundred fifty-eight thousand, seven hundred sixty-one".