1145511254 has 8 divisors (see below), whose sum is σ = 1808702040. Its totient is φ = 542610576.

The previous prime is 1145511179. The next prime is 1145511277. The reversal of 1145511254 is 4521155411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15072479 + ... + 15072554.

It is an arithmetic number, because the mean of its divisors is an integer number (226087755).

Almost surely, 2^1145511254 is an apocalyptic number.

1145511254 is a deficient number, since it is larger than the sum of its proper divisors (663190786).

1145511254 is a wasteful number, since it uses less digits than its factorization.

1145511254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30145054.

The product of its digits is 4000, while the sum is 29.

The square root of 1145511254 is about 33845.4022579139. The cubic root of 1145511254 is about 1046.3246417640.

Adding to 1145511254 its reverse (4521155411), we get a palindrome (5666666665).

The spelling of 1145511254 in words is "one billion, one hundred forty-five million, five hundred eleven thousand, two hundred fifty-four".