1522011413 has 4 divisors (see below), whose sum is σ = 1639089228. Its totient is φ = 1404933600.

The previous prime is 1522011373. The next prime is 1522011457. The reversal of 1522011413 is 3141102251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3141102251 = 7 ⋅448728893.

It can be written as a sum of positive squares in 2 ways, for example, as 410589169 + 1111422244 = 20263^2 + 33338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1522011413 - 2⁸ = 1522011157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522011493) 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, 58538888 + ... + 58538913.

It is an arithmetic number, because the mean of its divisors is an integer number (409772307).

Almost surely, 2^1522011413 is an apocalyptic number.

1522011413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1522011413 is a deficient number, since it is larger than the sum of its proper divisors (117077815).

1522011413 is a wasteful number, since it uses less digits than its factorization.

1522011413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117077814.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1522011413 is about 39012.9646784245. The cubic root of 1522011413 is about 1150.2863591862.

Adding to 1522011413 its reverse (3141102251), we get a palindrome (4663113664).

The spelling of 1522011413 in words is "one billion, five hundred twenty-two million, eleven thousand, four hundred thirteen".