1531200048 has 40 divisors (see below), whose sum is σ = 4520686848. Its totient is φ = 437485632.

The previous prime is 1531200043. The next prime is 1531200061. The reversal of 1531200048 is 8400021351.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1531200043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278236 + ... + 2278907.

Almost surely, 2^1531200048 is an apocalyptic number.

It is an amenable number.

1531200048 is an abundant number, since it is smaller than the sum of its proper divisors (2989486800).

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

1531200048 is a wasteful number, since it uses less digits than its factorization.

1531200048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557161 (or 4557155 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1531200048 is about 39130.5513377974. The cubic root of 1531200048 is about 1152.5965395170.

Adding to 1531200048 its reverse (8400021351), we get a palindrome (9931221399).

The spelling of 1531200048 in words is "one billion, five hundred thirty-one million, two hundred thousand, forty-eight".