1523040423 has 4 divisors (see below), whose sum is σ = 2030720568. Its totient is φ = 1015360280.

The previous prime is 1523040373. The next prime is 1523040433. The reversal of 1523040423 is 3240403251.

1523040423 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1523040423 - 2²¹ = 1520943271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1523040393 and 1523040402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523040433) 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, 253840068 + ... + 253840073.

It is an arithmetic number, because the mean of its divisors is an integer number (507680142).

Almost surely, 2^1523040423 is an apocalyptic number.

1523040423 is a deficient number, since it is larger than the sum of its proper divisors (507680145).

1523040423 is an equidigital number, since it uses as much as digits as its factorization.

1523040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507680144.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1523040423 is about 39026.1505019391. The cubic root of 1523040423 is about 1150.5455314686.

Adding to 1523040423 its reverse (3240403251), we get a palindrome (4763443674).

The spelling of 1523040423 in words is "one billion, five hundred twenty-three million, forty thousand, four hundred twenty-three".