1523136423 has 8 divisors (see below), whose sum is σ = 2096359936. Its totient is φ = 982668600.

The previous prime is 1523136421. The next prime is 1523136431. The reversal of 1523136423 is 3246313251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1523136423 - 2¹ = 1523136421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523136421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8188813 + ... + 8188998.

It is an arithmetic number, because the mean of its divisors is an integer number (262044992).

Almost surely, 2^1523136423 is an apocalyptic number.

1523136423 is a deficient number, since it is larger than the sum of its proper divisors (573223513).

1523136423 is a wasteful number, since it uses less digits than its factorization.

1523136423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377845.

The product of its digits is 12960, while the sum is 30.

The square root of 1523136423 is about 39027.3804270797. The cubic root of 1523136423 is about 1150.5697046179.

Adding to 1523136423 its reverse (3246313251), we get a palindrome (4769449674).

The spelling of 1523136423 in words is "one billion, five hundred twenty-three million, one hundred thirty-six thousand, four hundred twenty-three".