58121391 has 8 divisors (see below), whose sum is σ = 80864640. Its totient is φ = 37062872.

The previous prime is 58121389. The next prime is 58121429. The reversal of 58121391 is 19312185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 58121391 - 2¹ = 58121389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58121891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421101 + ... + 421238.

It is an arithmetic number, because the mean of its divisors is an integer number (10108080).

Almost surely, 2^58121391 is an apocalyptic number.

58121391 is a deficient number, since it is larger than the sum of its proper divisors (22743249).

58121391 is a wasteful number, since it uses less digits than its factorization.

58121391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842365.

The product of its digits is 2160, while the sum is 30.

The square root of 58121391 is about 7623.7386497702. The cubic root of 58121391 is about 387.3575273666.

The spelling of 58121391 in words is "fifty-eight million, one hundred twenty-one thousand, three hundred ninety-one".