1151251543 has 8 divisors (see below), whose sum is σ = 1312739568. Its totient is φ = 1000182144.

The previous prime is 1151251489. The next prime is 1151251561. The reversal of 1151251543 is 3451521511.

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

It is not a de Polignac number, because 1151251543 - 2¹³ = 1151243351 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 (1151251643) 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, 2604421 + ... + 2604862.

It is an arithmetic number, because the mean of its divisors is an integer number (164092446).

Almost surely, 2^1151251543 is an apocalyptic number.

1151251543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1151251543 is a deficient number, since it is larger than the sum of its proper divisors (161488025).

1151251543 is a wasteful number, since it uses less digits than its factorization.

1151251543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209313.

The product of its digits is 3000, while the sum is 28.

The square root of 1151251543 is about 33930.0978925791. The cubic root of 1151251543 is about 1048.0694816194.

The spelling of 1151251543 in words is "one billion, one hundred fifty-one million, two hundred fifty-one thousand, five hundred forty-three".