1505365493 has 2 divisors, whose sum is σ = 1505365494. Its totient is φ = 1505365492.

The previous prime is 1505365489. The next prime is 1505365507. The reversal of 1505365493 is 3945635051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1465511524 + 39853969 = 38282^2 + 6313^2 .

It is an emirp because it is prime and its reverse (3945635051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1505365493 - 2² = 1505365489 is a prime.

It is a super-2 number, since 2×1505365493² = 4532250535030266098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1505365493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1505365403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752682746 + 752682747.

It is an arithmetic number, because the mean of its divisors is an integer number (752682747).

Almost surely, 2^1505365493 is an apocalyptic number.

It is an amenable number.

1505365493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1505365493 is an equidigital number, since it uses as much as digits as its factorization.

1505365493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 41.

The square root of 1505365493 is about 38799.0398463673. The cubic root of 1505365493 is about 1146.0774975587.

The spelling of 1505365493 in words is "one billion, five hundred five million, three hundred sixty-five thousand, four hundred ninety-three".