501435149 has 2 divisors, whose sum is σ = 501435150. Its totient is φ = 501435148.

The previous prime is 501435139. The next prime is 501435161. The reversal of 501435149 is 941534105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369024100 + 132411049 = 19210^2 + 11507^2 .

It is a cyclic number.

It is not a de Polignac number, because 501435149 - 2⁸ = 501434893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501435139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250717574 + 250717575.

It is an arithmetic number, because the mean of its divisors is an integer number (250717575).

Almost surely, 2^501435149 is an apocalyptic number.

It is an amenable number.

501435149 is a deficient number, since it is larger than the sum of its proper divisors (1).

501435149 is an equidigital number, since it uses as much as digits as its factorization.

501435149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 501435149 is about 22392.7476875885. The cubic root of 501435149 is about 794.4591862635.

The spelling of 501435149 in words is "five hundred one million, four hundred thirty-five thousand, one hundred forty-nine".