1144661523 has 16 divisors (see below), whose sum is σ = 1604733600. Its totient is φ = 724711680.

The previous prime is 1144661521. The next prime is 1144661543. The reversal of 1144661523 is 3251664411.

It is not a de Polignac number, because 1144661523 - 2¹ = 1144661521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144661521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102538 + ... + 113151.

It is an arithmetic number, because the mean of its divisors is an integer number (100295850).

Almost surely, 2^1144661523 is an apocalyptic number.

1144661523 is a deficient number, since it is larger than the sum of its proper divisors (460072077).

1144661523 is a wasteful number, since it uses less digits than its factorization.

1144661523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215782.

The product of its digits is 17280, while the sum is 33.

The square root of 1144661523 is about 33832.8468060256. The cubic root of 1144661523 is about 1046.0658593753.

The spelling of 1144661523 in words is "one billion, one hundred forty-four million, six hundred sixty-one thousand, five hundred twenty-three".