1151401145 has 4 divisors (see below), whose sum is σ = 1381681380. Its totient is φ = 921120912.

The previous prime is 1151401133. The next prime is 1151401151. The reversal of 1151401145 is 5411041511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5411041511 = 337 ⋅16056503.

It can be written as a sum of positive squares in 2 ways, for example, as 128232976 + 1023168169 = 11324^2 + 31987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151401145 - 2⁴ = 1151401129 is a prime.

It is a super-2 number, since 2×1151401145² = 2651449193414622050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1151401145.

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, 115140110 + ... + 115140119.

It is an arithmetic number, because the mean of its divisors is an integer number (345420345).

Almost surely, 2^1151401145 is an apocalyptic number.

It is an amenable number.

1151401145 is a deficient number, since it is larger than the sum of its proper divisors (230280235).

1151401145 is an equidigital number, since it uses as much as digits as its factorization.

1151401145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230280234.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1151401145 is about 33932.3023828328. The cubic root of 1151401145 is about 1048.1148775772.

Adding to 1151401145 its reverse (5411041511), we get a palindrome (6562442656).

The spelling of 1151401145 in words is "one billion, one hundred fifty-one million, four hundred one thousand, one hundred forty-five".