1048632149 has 4 divisors (see below), whose sum is σ = 1048703136. Its totient is φ = 1048561164.

The previous prime is 1048632139. The next prime is 1048632191. The reversal of 1048632149 is 9412368401.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9412368401 = 41 ⋅229569961.

It is a cyclic number.

It is not a de Polignac number, because 1048632149 - 2²⁰ = 1047583573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048632119) 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, 4049 + ... + 45974.

It is an arithmetic number, because the mean of its divisors is an integer number (262175784).

Almost surely, 2^1048632149 is an apocalyptic number.

It is an amenable number.

1048632149 is a deficient number, since it is larger than the sum of its proper divisors (70987).

1048632149 is an equidigital number, since it uses as much as digits as its factorization.

1048632149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70986.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1048632149 is about 32382.5902144964. The cubic root of 1048632149 is about 1015.9548066806.

The spelling of 1048632149 in words is "one billion, forty-eight million, six hundred thirty-two thousand, one hundred forty-nine".