1143202515 has 64 divisors (see below), whose sum is σ = 2303702016. Its totient is φ = 471163392.

The previous prime is 1143202493. The next prime is 1143202559. The reversal of 1143202515 is 5152023411.

It is a happy number.

It is not a de Polignac number, because 1143202515 - 2⁸ = 1143202259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48957 + ... + 68433.

It is an arithmetic number, because the mean of its divisors is an integer number (35995344).

Almost surely, 2^1143202515 is an apocalyptic number.

1143202515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143202515 is an abundant number, since it is smaller than the sum of its proper divisors (1160499501).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143202515 is a wasteful number, since it uses less digits than its factorization.

1143202515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19548.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1143202515 is about 33811.2779261595. The cubic root of 1143202515 is about 1045.6212250633.

Adding to 1143202515 its reverse (5152023411), we get a palindrome (6295225926).

The spelling of 1143202515 in words is "one billion, one hundred forty-three million, two hundred two thousand, five hundred fifteen".