1543132653 has 8 divisors (see below), whose sum is σ = 2178540288. Its totient is φ = 968240064.

The previous prime is 1543132609. The next prime is 1543132681. The reversal of 1543132653 is 3562313451.

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

It is not a de Polignac number, because 1543132653 - 2⁶ = 1543132589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543132553) 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, 15128701 + ... + 15128802.

It is an arithmetic number, because the mean of its divisors is an integer number (272317536).

Almost surely, 2^1543132653 is an apocalyptic number.

It is an amenable number.

1543132653 is a deficient number, since it is larger than the sum of its proper divisors (635407635).

1543132653 is a wasteful number, since it uses less digits than its factorization.

1543132653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30257523.

The product of its digits is 32400, while the sum is 33.

The square root of 1543132653 is about 39282.7271583835. The cubic root of 1543132653 is about 1155.5828478230.

It can be divided in two parts, 15431 and 32653, that added together give a palindrome (48084).

The spelling of 1543132653 in words is "one billion, five hundred forty-three million, one hundred thirty-two thousand, six hundred fifty-three".