1543131145 has 16 divisors (see below), whose sum is σ = 1898894592. Its totient is φ = 1203143040.

The previous prime is 1543131133. The next prime is 1543131167. The reversal of 1543131145 is 5411313451.

It is not a de Polignac number, because 1543131145 - 2¹³ = 1543122953 is a prime.

It is a super-2 number, since 2×1543131145² = 4762507461338022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226864 + ... + 233566.

It is an arithmetic number, because the mean of its divisors is an integer number (118680912).

Almost surely, 2^1543131145 is an apocalyptic number.

It is an amenable number.

1543131145 is a deficient number, since it is larger than the sum of its proper divisors (355763447).

1543131145 is a wasteful number, since it uses less digits than its factorization.

1543131145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872.

The product of its digits is 3600, while the sum is 28.

The square root of 1543131145 is about 39282.7079641921. The cubic root of 1543131145 is about 1155.5824713984.

Adding to 1543131145 its reverse (5411313451), we get a palindrome (6954444596).

The spelling of 1543131145 in words is "one billion, five hundred forty-three million, one hundred thirty-one thousand, one hundred forty-five".