1040021523 has 12 divisors (see below), whose sum is σ = 1502652528. Its totient is φ = 693163440.

The previous prime is 1040021483. The next prime is 1040021551. The reversal of 1040021523 is 3251200401.

It is not a de Polignac number, because 1040021523 - 2⁶ = 1040021459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040021496 and 1040021505.

It is not an unprimeable number, because it can be changed into a prime (1040021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26361 + ... + 52677.

It is an arithmetic number, because the mean of its divisors is an integer number (125221044).

Almost surely, 2^1040021523 is an apocalyptic number.

1040021523 is a deficient number, since it is larger than the sum of its proper divisors (462631005).

1040021523 is a wasteful number, since it uses less digits than its factorization.

1040021523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30714 (or 30711 counting only the distinct ones).

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

The square root of 1040021523 is about 32249.3646914168. The cubic root of 1040021523 is about 1013.1663929482.

Adding to 1040021523 its reverse (3251200401), we get a palindrome (4291221924).

The spelling of 1040021523 in words is "one billion, forty million, twenty-one thousand, five hundred twenty-three".