1144901145 has 32 divisors (see below), whose sum is σ = 1990471680. Its totient is φ = 559811520.

The previous prime is 1144901141. The next prime is 1144901189. The reversal of 1144901145 is 5411094411.

It is not a de Polignac number, because 1144901145 - 2² = 1144901141 is a prime.

It is a super-2 number, since 2×1144901145² = 2621597263644622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1144901141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55959 + ... + 73628.

It is an arithmetic number, because the mean of its divisors is an integer number (62202240).

Almost surely, 2^1144901145 is an apocalyptic number.

1144901145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144901145 is a deficient number, since it is larger than the sum of its proper divisors (845570535).

1144901145 is a wasteful number, since it uses less digits than its factorization.

1144901145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129645.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1144901145 is about 33836.3878834606. The cubic root of 1144901145 is about 1046.1388483184.

Adding to 1144901145 its reverse (5411094411), we get a palindrome (6555995556).

The spelling of 1144901145 in words is "one billion, one hundred forty-four million, nine hundred one thousand, one hundred forty-five".