1503214540 has 48 divisors (see below), whose sum is σ = 3286598112. Its totient is φ = 576999936.

The previous prime is 1503214501. The next prime is 1503214541. The reversal of 1503214540 is 454123051.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1503214541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40107 + ... + 67933.

It is an arithmetic number, because the mean of its divisors is an integer number (68470794).

Almost surely, 2^1503214540 is an apocalyptic number.

1503214540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1503214540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643299056).

1503214540 is an abundant number, since it is smaller than the sum of its proper divisors (1783383572).

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

1503214540 is a wasteful number, since it uses less digits than its factorization.

1503214540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27946 (or 27944 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1503214540 is about 38771.3107851669. The cubic root of 1503214540 is about 1145.5313768333.

Adding to 1503214540 its reverse (454123051), we get a palindrome (1957337591).

The spelling of 1503214540 in words is "one billion, five hundred three million, two hundred fourteen thousand, five hundred forty".