60917531 has 2 divisors, whose sum is σ = 60917532. Its totient is φ = 60917530.

The previous prime is 60917473. The next prime is 60917533. The reversal of 60917531 is 13571906.

60917531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60917531 is a prime.

It is a super-2 number, since 2×60917531² = 7421891166271922, which contains 22 as substring.

Together with 60917533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60917533) 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, 30458765 + 30458766.

It is an arithmetic number, because the mean of its divisors is an integer number (30458766).

Almost surely, 2^60917531 is an apocalyptic number.

60917531 is a deficient number, since it is larger than the sum of its proper divisors (1).

60917531 is an equidigital number, since it uses as much as digits as its factorization.

60917531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 60917531 is about 7804.9683535553. The cubic root of 60917531 is about 393.4722399524.

The spelling of 60917531 in words is "sixty million, nine hundred seventeen thousand, five hundred thirty-one".