60231139 has 2 divisors, whose sum is σ = 60231140. Its totient is φ = 60231138.

The previous prime is 60231137. The next prime is 60231151. The reversal of 60231139 is 93113206.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60231139 - 2¹ = 60231137 is a prime.

Together with 60231137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (60231137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30115569 + 30115570.

It is an arithmetic number, because the mean of its divisors is an integer number (30115570).

Almost surely, 2^60231139 is an apocalyptic number.

60231139 is a deficient number, since it is larger than the sum of its proper divisors (1).

60231139 is an equidigital number, since it uses as much as digits as its factorization.

60231139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 60231139 is about 7760.8723092189. The cubic root of 60231139 is about 391.9888302905.

The spelling of 60231139 in words is "sixty million, two hundred thirty-one thousand, one hundred thirty-nine".