501145133647 has 2 divisors, whose sum is σ = 501145133648. Its totient is φ = 501145133646.

The previous prime is 501145133639. The next prime is 501145133683. The reversal of 501145133647 is 746331541105.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501145133647 - 2³ = 501145133639 is a prime.

It is a super-2 number, since 2×501145133647² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501145139647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250572566823 + 250572566824.

It is an arithmetic number, because the mean of its divisors is an integer number (250572566824).

Almost surely, 2^501145133647 is an apocalyptic number.

501145133647 is a deficient number, since it is larger than the sum of its proper divisors (1).

501145133647 is an equidigital number, since it uses as much as digits as its factorization.

501145133647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 501145133647 in words is "five hundred one billion, one hundred forty-five million, one hundred thirty-three thousand, six hundred forty-seven".