1243463523 has 8 divisors (see below), whose sum is σ = 1658712768. Its totient is φ = 828594984.

The previous prime is 1243463491. The next prime is 1243463561. The reversal of 1243463523 is 3253643421.

It is a happy number.

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

It is not a de Polignac number, because 1243463523 - 2⁵ = 1243463491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1243463323) 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, 87465 + ... + 100682.

It is an arithmetic number, because the mean of its divisors is an integer number (207339096).

Almost surely, 2^1243463523 is an apocalyptic number.

1243463523 is a deficient number, since it is larger than the sum of its proper divisors (415249245).

1243463523 is a wasteful number, since it uses less digits than its factorization.

1243463523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190353.

The product of its digits is 51840, while the sum is 33.

The square root of 1243463523 is about 35262.7781520401. The cubic root of 1243463523 is about 1075.3364075683.

It can be divided in two parts, 12434 and 63523, that added together give a palindrome (75957).

The spelling of 1243463523 in words is "one billion, two hundred forty-three million, four hundred sixty-three thousand, five hundred twenty-three".