1262032161 has 32 divisors (see below), whose sum is σ = 1831455360. Its totient is φ = 768413184.

The previous prime is 1262032159. The next prime is 1262032199. The reversal of 1262032161 is 1612302621.

It is not a de Polignac number, because 1262032161 - 2¹ = 1262032159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1262036161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2045125 + ... + 2045741.

It is an arithmetic number, because the mean of its divisors is an integer number (57232980).

Almost surely, 2^1262032161 is an apocalyptic number.

It is an amenable number.

1262032161 is a deficient number, since it is larger than the sum of its proper divisors (569423199).

1262032161 is a wasteful number, since it uses less digits than its factorization.

1262032161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1262032161 is about 35525.0919914361. The cubic root of 1262032161 is about 1080.6626480387.

Adding to 1262032161 its reverse (1612302621), we get a palindrome (2874334782).

The spelling of 1262032161 in words is "one billion, two hundred sixty-two million, thirty-two thousand, one hundred sixty-one".