1541522113 has 4 divisors (see below), whose sum is σ = 1542711940. Its totient is φ = 1540332288.

The previous prime is 1541522069. The next prime is 1541522149. The reversal of 1541522113 is 3112251451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3112251451 = 28277 ⋅110063.

It can be written as a sum of positive squares in 2 ways, for example, as 1377374769 + 164147344 = 37113^2 + 12812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1541522113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1541522153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592968 + ... + 595561.

It is an arithmetic number, because the mean of its divisors is an integer number (385677985).

Almost surely, 2^1541522113 is an apocalyptic number.

It is an amenable number.

1541522113 is a deficient number, since it is larger than the sum of its proper divisors (1189827).

1541522113 is a wasteful number, since it uses less digits than its factorization.

1541522113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189826.

The product of its digits is 1200, while the sum is 25.

The square root of 1541522113 is about 39262.2224663862. Note that the first 3 decimals coincide. The cubic root of 1541522113 is about 1155.1806874856.

Adding to 1541522113 its reverse (3112251451), we get a palindrome (4653773564).

The spelling of 1541522113 in words is "one billion, five hundred forty-one million, five hundred twenty-two thousand, one hundred thirteen".