1531836948 has 24 divisors (see below), whose sum is σ = 3576321280. Its totient is φ = 510321600.

The previous prime is 1531836923. The next prime is 1531836959. The reversal of 1531836948 is 8496381351.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1531836897 and 1531836906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13828 + ... + 57051.

Almost surely, 2^1531836948 is an apocalyptic number.

It is an amenable number.

1531836948 is an abundant number, since it is smaller than the sum of its proper divisors (2044484332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1531836948 is a wasteful number, since it uses less digits than its factorization.

1531836948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72687 (or 72685 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 1531836948 is about 39138.6886341380. The cubic root of 1531836948 is about 1152.7563242078.

The spelling of 1531836948 in words is "one billion, five hundred thirty-one million, eight hundred thirty-six thousand, nine hundred forty-eight".