1051161155 has 8 divisors (see below), whose sum is σ = 1376065584. Its totient is φ = 764480800.

The previous prime is 1051161131. The next prime is 1051161253. The reversal of 1051161155 is 5511611501.

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

It is not a de Polignac number, because 1051161155 - 2¹⁸ = 1050899011 is a prime.

It is a super-2 number, since 2×1051161155² = 2209879547561868050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9555956 + ... + 9556065.

It is an arithmetic number, because the mean of its divisors is an integer number (172008198).

Almost surely, 2^1051161155 is an apocalyptic number.

1051161155 is a deficient number, since it is larger than the sum of its proper divisors (324904429).

1051161155 is a wasteful number, since it uses less digits than its factorization.

1051161155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19112037.

The product of its (nonzero) digits is 750, while the sum is 26.

The square root of 1051161155 is about 32421.6155519740. The cubic root of 1051161155 is about 1016.7708834609.

Adding to 1051161155 its reverse (5511611501), we get a palindrome (6562772656).

The spelling of 1051161155 in words is "one billion, fifty-one million, one hundred sixty-one thousand, one hundred fifty-five".