1155625143 has 8 divisors (see below), whose sum is σ = 1573617408. Its totient is φ = 754024824.

The previous prime is 1155625127. The next prime is 1155625151. The reversal of 1155625143 is 3415265511.

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

It is not a de Polignac number, because 1155625143 - 2⁴ = 1155625127 is a prime.

It is a super-2 number, since 2×1155625143² = 2670938942267540898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155625183) 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, 4097821 + ... + 4098102.

It is an arithmetic number, because the mean of its divisors is an integer number (196702176).

Almost surely, 2^1155625143 is an apocalyptic number.

1155625143 is a deficient number, since it is larger than the sum of its proper divisors (417992265).

1155625143 is an equidigital number, since it uses as much as digits as its factorization.

1155625143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8195973.

The product of its digits is 18000, while the sum is 33.

The square root of 1155625143 is about 33994.4869500924. The cubic root of 1155625143 is about 1049.3950083975.

The spelling of 1155625143 in words is "one billion, one hundred fifty-five million, six hundred twenty-five thousand, one hundred forty-three".