1144342515 has 16 divisors (see below), whose sum is σ = 1832457888. Its totient is φ = 609812736.

The previous prime is 1144342487. The next prime is 1144342547. The reversal of 1144342515 is 5152434411.

It is not a de Polignac number, because 1144342515 - 2⁸ = 1144342259 is a prime.

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, 12282 + ... + 49391.

It is an arithmetic number, because the mean of its divisors is an integer number (114528618).

Almost surely, 2^1144342515 is an apocalyptic number.

1144342515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144342515 is a deficient number, since it is larger than the sum of its proper divisors (688115373).

1144342515 is a wasteful number, since it uses less digits than its factorization.

1144342515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62918.

The product of its digits is 9600, while the sum is 30.

The square root of 1144342515 is about 33828.1320057729. The cubic root of 1144342515 is about 1045.9686736204.

Adding to 1144342515 its reverse (5152434411), we get a palindrome (6296776926).

The spelling of 1144342515 in words is "one billion, one hundred forty-four million, three hundred forty-two thousand, five hundred fifteen".