1523010042 has 24 divisors (see below), whose sum is σ = 3493964916. Its totient is φ = 477806976.

The previous prime is 1523010029. The next prime is 1523010079. The reversal of 1523010042 is 2400103251.

1523010042 is a `hidden beast` number, since 1 + 523 + 0 + 100 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1437243921 + 85766121 = 37911^2 + 9261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1523009997 and 1523010024.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2488273 + ... + 2488884.

Almost surely, 2^1523010042 is an apocalyptic number.

1523010042 is an abundant number, since it is smaller than the sum of its proper divisors (1970954874).

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

1523010042 is a wasteful number, since it uses less digits than its factorization.

1523010042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977182 (or 4977179 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1523010042 is about 39025.7612609927. The cubic root of 1523010042 is about 1150.5378812107.

Adding to 1523010042 its reverse (2400103251), we get a palindrome (3923113293).

The spelling of 1523010042 in words is "one billion, five hundred twenty-three million, ten thousand, forty-two".