1145241129 has 4 divisors (see below), whose sum is σ = 1526988176. Its totient is φ = 763494084.

The previous prime is 1145241107. The next prime is 1145241187. The reversal of 1145241129 is 9211425411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1145241129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145241096 and 1145241105.

It is not an unprimeable number, because it can be changed into a prime (1145241199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190873519 + ... + 190873524.

It is an arithmetic number, because the mean of its divisors is an integer number (381747044).

Almost surely, 2^1145241129 is an apocalyptic number.

It is an amenable number.

1145241129 is a deficient number, since it is larger than the sum of its proper divisors (381747047).

1145241129 is an equidigital number, since it uses as much as digits as its factorization.

1145241129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381747046.

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

The square root of 1145241129 is about 33841.4114510610. The cubic root of 1145241129 is about 1046.2423900875.

The spelling of 1145241129 in words is "one billion, one hundred forty-five million, two hundred forty-one thousand, one hundred twenty-nine".