1143451551 has 8 divisors (see below), whose sum is σ = 1663202304. Its totient is φ = 693000920.

The previous prime is 1143451549. The next prime is 1143451553. The reversal of 1143451551 is 1551543411.

It is an interprime number because it is at equal distance from previous prime (1143451549) and next prime (1143451553).

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

It is a cyclic number.

It is not a de Polignac number, because 1143451551 - 2¹ = 1143451549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143451553) 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, 17324991 + ... + 17325056.

It is an arithmetic number, because the mean of its divisors is an integer number (207900288).

Almost surely, 2^1143451551 is an apocalyptic number.

1143451551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1143451551 is a deficient number, since it is larger than the sum of its proper divisors (519750753).

1143451551 is a wasteful number, since it uses less digits than its factorization.

1143451551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34650061.

The product of its digits is 6000, while the sum is 30.

The square root of 1143451551 is about 33814.9604613106. The cubic root of 1143451551 is about 1045.6971458262.

Adding to 1143451551 its reverse (1551543411), we get a palindrome (2694994962).

The spelling of 1143451551 in words is "one billion, one hundred forty-three million, four hundred fifty-one thousand, five hundred fifty-one".