1145135141 has 4 divisors (see below), whose sum is σ = 1145286912. Its totient is φ = 1144983372.

The previous prime is 1145135087. The next prime is 1145135197. The reversal of 1145135141 is 1415315411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1415315411 = 1901 ⋅744511.

It is a cyclic number.

It is not a de Polignac number, because 1145135141 - 2²² = 1140940837 is a prime.

It is a super-2 number, since 2×1145135141² = 2622668982306179762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145135141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145135941) 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, 63941 + ... + 79866.

It is an arithmetic number, because the mean of its divisors is an integer number (286321728).

Almost surely, 2^1145135141 is an apocalyptic number.

It is an amenable number.

1145135141 is a deficient number, since it is larger than the sum of its proper divisors (151771).

1145135141 is an equidigital number, since it uses as much as digits as its factorization.

1145135141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151770.

The product of its digits is 1200, while the sum is 26.

The square root of 1145135141 is about 33839.8454635951. The cubic root of 1145135141 is about 1046.2101137524.

The spelling of 1145135141 in words is "one billion, one hundred forty-five million, one hundred thirty-five thousand, one hundred forty-one".