1147143215 has 16 divisors (see below), whose sum is σ = 1383946560. Its totient is φ = 912814080.

The previous prime is 1147143197. The next prime is 1147143281. The reversal of 1147143215 is 5123417411.

It is not a de Polignac number, because 1147143215 - 2¹⁴ = 1147126831 is a prime.

It is a congruent 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, 1150097 + ... + 1151093.

It is an arithmetic number, because the mean of its divisors is an integer number (86496660).

Almost surely, 2^1147143215 is an apocalyptic number.

1147143215 is a deficient number, since it is larger than the sum of its proper divisors (236803345).

1147143215 is an equidigital number, since it uses as much as digits as its factorization.

1147143215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its digits is 3360, while the sum is 29.

The square root of 1147143215 is about 33869.5027273800. The cubic root of 1147143215 is about 1046.8212906759.

The spelling of 1147143215 in words is "one billion, one hundred forty-seven million, one hundred forty-three thousand, two hundred fifteen".