1165632151 has 4 divisors (see below), whose sum is σ = 1176949072. Its totient is φ = 1154315232.

The previous prime is 1165632109. The next prime is 1165632179. The reversal of 1165632151 is 1512365611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1165632151 - 2¹³ = 1165623959 is a prime.

It is a super-2 number, since 2×1165632151² = 2717396622889773602, 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 (1165632191) 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, 5658306 + ... + 5658511.

It is an arithmetic number, because the mean of its divisors is an integer number (294237268).

Almost surely, 2^1165632151 is an apocalyptic number.

1165632151 is a deficient number, since it is larger than the sum of its proper divisors (11316921).

1165632151 is a wasteful number, since it uses less digits than its factorization.

1165632151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11316920.

The product of its digits is 5400, while the sum is 31.

The square root of 1165632151 is about 34141.3554358933. The cubic root of 1165632151 is about 1052.4153469753.

Adding to 1165632151 its reverse (1512365611), we get a palindrome (2677997762).

The spelling of 1165632151 in words is "one billion, one hundred sixty-five million, six hundred thirty-two thousand, one hundred fifty-one".