60990031 has 2 divisors, whose sum is σ = 60990032. Its totient is φ = 60990030.

The previous prime is 60990029. The next prime is 60990037. The reversal of 60990031 is 13009906.

It is a happy number.

60990031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60990031 - 2¹ = 60990029 is a prime.

It is a super-2 number, since 2×60990031² = 7439567762761922, which contains 22 as substring.

Together with 60990029, 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 (60990037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30495015 + 30495016.

It is an arithmetic number, because the mean of its divisors is an integer number (30495016).

Almost surely, 2^60990031 is an apocalyptic number.

60990031 is a deficient number, since it is larger than the sum of its proper divisors (1).

60990031 is an equidigital number, since it uses as much as digits as its factorization.

60990031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 60990031 is about 7809.6114500019. The cubic root of 60990031 is about 393.6282729122.

Adding to 60990031 its reverse (13009906), we get a palindrome (73999937).

The spelling of 60990031 in words is "sixty million, nine hundred ninety thousand, thirty-one".