1144213534 has 32 divisors (see below), whose sum is σ = 1805126400. Its totient is φ = 543283200.

The previous prime is 1144213519. The next prime is 1144213541. The reversal of 1144213534 is 4353124411.

It is a super-2 number, since 2×1144213534² = 2618449222777538312, which contains 22 as substring.

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, 1090242 + ... + 1091290.

It is an arithmetic number, because the mean of its divisors is an integer number (56410200).

Almost surely, 2^1144213534 is an apocalyptic number.

1144213534 is a deficient number, since it is larger than the sum of its proper divisors (660912866).

1144213534 is a wasteful number, since it uses less digits than its factorization.

1144213534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its digits is 5760, while the sum is 28.

The square root of 1144213534 is about 33826.2255358176. The cubic root of 1144213534 is about 1045.9293744442.

Adding to 1144213534 its reverse (4353124411), we get a palindrome (5497337945).

It can be divided in two parts, 11442 and 13534, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 1144213534 in words is "one billion, one hundred forty-four million, two hundred thirteen thousand, five hundred thirty-four".