1048415881 has 4 divisors (see below), whose sum is σ = 1050690564. Its totient is φ = 1046141200.

The previous prime is 1048415827. The next prime is 1048415903. The reversal of 1048415881 is 1885148401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1885148401 = 2647 ⋅712183.

It can be written as a sum of positive squares in 2 ways, for example, as 619263225 + 429152656 = 24885^2 + 20716^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048415881 - 2⁹ = 1048415369 is a prime.

It is a super-2 number, since 2×1048415881² = 2198351719066012322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1048415581) 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, 1136650 + ... + 1137571.

It is an arithmetic number, because the mean of its divisors is an integer number (262672641).

Almost surely, 2^1048415881 is an apocalyptic number.

It is an amenable number.

1048415881 is a deficient number, since it is larger than the sum of its proper divisors (2274683).

1048415881 is an equidigital number, since it uses as much as digits as its factorization.

1048415881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274682.

The product of its (nonzero) digits is 40960, while the sum is 40.

The square root of 1048415881 is about 32379.2507788553. The cubic root of 1048415881 is about 1015.8849589840.

The spelling of 1048415881 in words is "one billion, forty-eight million, four hundred fifteen thousand, eight hundred eighty-one".