1523135422 has 16 divisors (see below), whose sum is σ = 2339263872. Its totient is φ = 743402520.

The previous prime is 1523135401. The next prime is 1523135441. The reversal of 1523135422 is 2245313251.

It is a super-2 number, since 2×1523135422² = 4639883027502236168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168543 + ... + 177349.

It is an arithmetic number, because the mean of its divisors is an integer number (146203992).

Almost surely, 2^1523135422 is an apocalyptic number.

1523135422 is a deficient number, since it is larger than the sum of its proper divisors (816128450).

1523135422 is a wasteful number, since it uses less digits than its factorization.

1523135422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863.

The product of its digits is 7200, while the sum is 28.

The square root of 1523135422 is about 39027.3676027477. The cubic root of 1523135422 is about 1150.5694525677.

Adding to 1523135422 its reverse (2245313251), we get a palindrome (3768448673).

It can be divided in two parts, 15231 and 35422, that added together give a cube (50653 = 37³).

The spelling of 1523135422 in words is "one billion, five hundred twenty-three million, one hundred thirty-five thousand, four hundred twenty-two".