1527745946 has 4 divisors (see below), whose sum is σ = 2291618922. Its totient is φ = 763872972.

The previous prime is 1527745913. The next prime is 1527745949. The reversal of 1527745946 is 6495477251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6495477251 = 97 ⋅66963683.

It can be written as a sum of positive squares in only one way, i.e., 1423930225 + 103815721 = 37735^2 + 10189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1527745894 and 1527745903.

It is not an unprimeable number, because it can be changed into a prime (1527745949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381936485 + ... + 381936488.

Almost surely, 2^1527745946 is an apocalyptic number.

1527745946 is a deficient number, since it is larger than the sum of its proper divisors (763872976).

1527745946 is an equidigital number, since it uses as much as digits as its factorization.

1527745946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763872975.

The product of its digits is 2116800, while the sum is 50.

The square root of 1527745946 is about 39086.3908029380. The cubic root of 1527745946 is about 1151.7292059988.

The spelling of 1527745946 in words is "one billion, five hundred twenty-seven million, seven hundred forty-five thousand, nine hundred forty-six".