58190981 has 2 divisors, whose sum is σ = 58190982. Its totient is φ = 58190980.

The previous prime is 58190969. The next prime is 58191037. The reversal of 58190981 is 18909185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 1865956 = 7505^2 + 1366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58190981 is a prime.

It is a super-2 number, since 2×58190981² = 6772380539484722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58190921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29095490 + 29095491.

It is an arithmetic number, because the mean of its divisors is an integer number (29095491).

Almost surely, 2^58190981 is an apocalyptic number.

It is an amenable number.

58190981 is a deficient number, since it is larger than the sum of its proper divisors (1).

58190981 is an equidigital number, since it uses as much as digits as its factorization.

58190981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 58190981 is about 7628.3013181179. The cubic root of 58190981 is about 387.5120628919.

The spelling of 58190981 in words is "fifty-eight million, one hundred ninety thousand, nine hundred eighty-one".