1165551351 has 8 divisors (see below), whose sum is σ = 1554843264. Its totient is φ = 776646840.

The previous prime is 1165551349. The next prime is 1165551353. The reversal of 1165551351 is 1531555611.

It is an interprime number because it is at equal distance from previous prime (1165551349) and next prime (1165551353).

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

It is not a de Polignac number, because 1165551351 - 2¹ = 1165551349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165551353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89755 + ... + 101916.

It is an arithmetic number, because the mean of its divisors is an integer number (194355408).

Almost surely, 2^1165551351 is an apocalyptic number.

1165551351 is a deficient number, since it is larger than the sum of its proper divisors (389291913).

1165551351 is a wasteful number, since it uses less digits than its factorization.

1165551351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193701.

The product of its digits is 11250, while the sum is 33.

The square root of 1165551351 is about 34140.1720997420. The cubic root of 1165551351 is about 1052.3910290906.

The spelling of 1165551351 in words is "one billion, one hundred sixty-five million, five hundred fifty-one thousand, three hundred fifty-one".