1046887161 has 4 divisors (see below), whose sum is σ = 1395849552. Its totient is φ = 697924772.

The previous prime is 1046887157. The next prime is 1046887181. The reversal of 1046887161 is 1617886401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1046887161 - 2² = 1046887157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1046887181) 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 3 ways as a sum of consecutive naturals, for example, 174481191 + ... + 174481196.

It is an arithmetic number, because the mean of its divisors is an integer number (348962388).

Almost surely, 2^1046887161 is an apocalyptic number.

It is an amenable number.

1046887161 is a deficient number, since it is larger than the sum of its proper divisors (348962391).

1046887161 is an equidigital number, since it uses as much as digits as its factorization.

1046887161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348962390.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1046887161 is about 32355.6356914835. The cubic root of 1046887161 is about 1015.3909568364.

The spelling of 1046887161 in words is "one billion, forty-six million, eight hundred eighty-seven thousand, one hundred sixty-one".