1523412612 has 18 divisors (see below), whose sum is σ = 3850848638. Its totient is φ = 507804192.

The previous prime is 1523412599. The next prime is 1523412661. The reversal of 1523412612 is 2162143251.

1523412612 is a `hidden beast` number, since 1 + 5 + 2 + 3 + 41 + 2 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1268499456 + 254913156 = 35616^2 + 15966^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21158473 + ... + 21158544.

Almost surely, 2^1523412612 is an apocalyptic number.

1523412612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1523412612 is an abundant number, since it is smaller than the sum of its proper divisors (2327436026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1523412612 is a wasteful number, since it uses less digits than its factorization.

1523412612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42317027 (or 42317022 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1523412612 is about 39030.9186671285. The cubic root of 1523412612 is about 1150.6392443488.

Adding to 1523412612 its reverse (2162143251), we get a palindrome (3685555863).

The spelling of 1523412612 in words is "one billion, five hundred twenty-three million, four hundred twelve thousand, six hundred twelve".