60138391 has 2 divisors, whose sum is σ = 60138392. Its totient is φ = 60138390.

The previous prime is 60138389. The next prime is 60138413. The reversal of 60138391 is 19383106.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60138391 - 2¹ = 60138389 is a prime.

Together with 60138389, 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 (60138311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30069195 + 30069196.

It is an arithmetic number, because the mean of its divisors is an integer number (30069196).

Almost surely, 2^60138391 is an apocalyptic number.

60138391 is a deficient number, since it is larger than the sum of its proper divisors (1).

60138391 is an equidigital number, since it uses as much as digits as its factorization.

60138391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 60138391 is about 7754.8946478982. The cubic root of 60138391 is about 391.7875232487.

The spelling of 60138391 in words is "sixty million, one hundred thirty-eight thousand, three hundred ninety-one".