1151403165 has 24 divisors (see below), whose sum is σ = 2177199648. Its totient is φ = 558255840.

The previous prime is 1151403119. The next prime is 1151403167. The reversal of 1151403165 is 5613041511.

It is not a de Polignac number, because 1151403165 - 2⁶ = 1151403101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151403167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1162539 + ... + 1163528.

It is an arithmetic number, because the mean of its divisors is an integer number (90716652).

Almost surely, 2^1151403165 is an apocalyptic number.

1151403165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151403165 is a deficient number, since it is larger than the sum of its proper divisors (1025796483).

1151403165 is a wasteful number, since it uses less digits than its factorization.

1151403165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326089 (or 2326086 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1151403165 is about 33932.3321479677. The cubic root of 1151403165 is about 1048.1154905089.

Adding to 1151403165 its reverse (5613041511), we get a palindrome (6764444676).

The spelling of 1151403165 in words is "one billion, one hundred fifty-one million, four hundred three thousand, one hundred sixty-five".