58720121 has 2 divisors, whose sum is σ = 58720122. Its totient is φ = 58720120.

The previous prime is 58720097. The next prime is 58720139. The reversal of 58720121 is 12102785.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58675600 + 44521 = 7660^2 + 211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58720121 is a prime.

It is a super-2 number, since 2×58720121² = 6896105220509282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (58720141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29360060 + 29360061.

It is an arithmetic number, because the mean of its divisors is an integer number (29360061).

Almost surely, 2^58720121 is an apocalyptic number.

It is an amenable number.

58720121 is a deficient number, since it is larger than the sum of its proper divisors (1).

58720121 is an equidigital number, since it uses as much as digits as its factorization.

58720121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 58720121 is about 7662.9055194489. The cubic root of 58720121 is about 388.6830905341.

The spelling of 58720121 in words is "fifty-eight million, seven hundred twenty thousand, one hundred twenty-one".