1155470161 has 32 divisors (see below), whose sum is σ = 1339269120. Its totient is φ = 989625600.

The previous prime is 1155470149. The next prime is 1155470167. The reversal of 1155470161 is 1610745511.

It is a cyclic number.

It is not a de Polignac number, because 1155470161 - 2¹¹ = 1155468113 is a prime.

It is a super-2 number, since 2×1155470161² = 2670222585922731842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155470167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1671826 + ... + 1672516.

It is an arithmetic number, because the mean of its divisors is an integer number (41852160).

Almost surely, 2^1155470161 is an apocalyptic number.

It is an amenable number.

1155470161 is a deficient number, since it is larger than the sum of its proper divisors (183798959).

1155470161 is a wasteful number, since it uses less digits than its factorization.

1155470161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 1155470161 is about 33992.2073569811. The cubic root of 1155470161 is about 1049.3480945087.

The spelling of 1155470161 in words is "one billion, one hundred fifty-five million, four hundred seventy thousand, one hundred sixty-one".