1145122151 has 8 divisors (see below), whose sum is σ = 1173229344. Its totient is φ = 1117347840.

The previous prime is 1145122103. The next prime is 1145122163. The reversal of 1145122151 is 1512215411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1145122151 - 2¹⁸ = 1144860007 is a prime.

It is a super-2 number, since 2×1145122151² = 2622609481421733602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145122651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76250 + ... + 90023.

It is an arithmetic number, because the mean of its divisors is an integer number (146653668).

Almost surely, 2^1145122151 is an apocalyptic number.

1145122151 is a deficient number, since it is larger than the sum of its proper divisors (28107193).

1145122151 is an equidigital number, since it uses as much as digits as its factorization.

1145122151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166441.

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

The square root of 1145122151 is about 33839.6535295502. The cubic root of 1145122151 is about 1046.2061577941.

Adding to 1145122151 its reverse (1512215411), we get a palindrome (2657337562).

The spelling of 1145122151 in words is "one billion, one hundred forty-five million, one hundred twenty-two thousand, one hundred fifty-one".