7158061 has 2 divisors, whose sum is σ = 7158062. Its totient is φ = 7158060.

The previous prime is 7158059. The next prime is 7158089. The reversal of 7158061 is 1608517.

7158061 = T₂₁₈₃ + T₂₁₈₄ + T₂₁₈₅.

It is a happy number.

It is an a-pointer prime, because the next prime (7158089) can be obtained adding 7158061 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4536900 + 2621161 = 2130^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 7158061 - 2¹ = 7158059 is a prime.

Together with 7158059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7158461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3579030 + 3579031.

It is an arithmetic number, because the mean of its divisors is an integer number (3579031).

Almost surely, 2^7158061 is an apocalyptic number.

7158061 is the 2185-th centered triangular number and also the 1197-th centered decagonal number.

It is an amenable number.

7158061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7158061 is an equidigital number, since it uses as much as digits as its factorization.

7158061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 7158061 is about 2675.4552883575. The cubic root of 7158061 is about 192.7222238272.

The spelling of 7158061 in words is "seven million, one hundred fifty-eight thousand, sixty-one".