1046812881 has 4 divisors (see below), whose sum is σ = 1395750512. Its totient is φ = 697875252.

The previous prime is 1046812873. The next prime is 1046812931. The reversal of 1046812881 is 1882186401.

1046812881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 1046812881 - 2³ = 1046812873 is a prime.

It is a super-2 number, since 2×1046812881² = 2191634415655040322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1046812801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174468811 + ... + 174468816.

It is an arithmetic number, because the mean of its divisors is an integer number (348937628).

Almost surely, 2^1046812881 is an apocalyptic number.

It is an amenable number.

1046812881 is a deficient number, since it is larger than the sum of its proper divisors (348937631).

1046812881 is an equidigital number, since it uses as much as digits as its factorization.

1046812881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348937630.

The product of its (nonzero) digits is 24576, while the sum is 39.

The square root of 1046812881 is about 32354.4878030854. The cubic root of 1046812881 is about 1015.3669411873.

The spelling of 1046812881 in words is "one billion, forty-six million, eight hundred twelve thousand, eight hundred eighty-one".