58138121 has 2 divisors, whose sum is σ = 58138122. Its totient is φ = 58138120.

The previous prime is 58138037. The next prime is 58138133. The reversal of 58138121 is 12183185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30680521 + 27457600 = 5539^2 + 5240^2 .

It is a cyclic number.

It is not a de Polignac number, because 58138121 - 2¹⁰ = 58137097 is a prime.

It is a super-2 number, since 2×58138121² = 6760082226821282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (58138141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29069060 + 29069061.

It is an arithmetic number, because the mean of its divisors is an integer number (29069061).

Almost surely, 2^58138121 is an apocalyptic number.

It is an amenable number.

58138121 is a deficient number, since it is larger than the sum of its proper divisors (1).

58138121 is an equidigital number, since it uses as much as digits as its factorization.

58138121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 58138121 is about 7624.8358015107. The cubic root of 58138121 is about 387.3946902174.

The spelling of 58138121 in words is "fifty-eight million, one hundred thirty-eight thousand, one hundred twenty-one".