1534025540 has 24 divisors (see below), whose sum is σ = 3222360792. Its totient is φ = 613437440.

The previous prime is 1534025539. The next prime is 1534025543. The reversal of 1534025540 is 455204351.

It can be written as a sum of positive squares in 4 ways, for example, as 14273284 + 1519752256 = 3778^2 + 38984^2 .

It is not an unprimeable number, because it can be changed into a prime (1534025543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81062 + ... + 98178.

It is an arithmetic number, because the mean of its divisors is an integer number (134265033).

Almost surely, 2^1534025540 is an apocalyptic number.

1534025540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1534025540 is an abundant number, since it is smaller than the sum of its proper divisors (1688335252).

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

1534025540 is a wasteful number, since it uses less digits than its factorization.

1534025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21607 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1534025540 is about 39166.6380992804. The cubic root of 1534025540 is about 1153.3050581312.

Adding to 1534025540 its reverse (455204351), we get a palindrome (1989229891).

The spelling of 1534025540 in words is "one billion, five hundred thirty-four million, twenty-five thousand, five hundred forty".