1203036540 has 24 divisors (see below), whose sum is σ = 3368502480. Its totient is φ = 320809728.

The previous prime is 1203036539. The next prime is 1203036557. The reversal of 1203036540 is 456303021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203036540.

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, 10025245 + ... + 10025364.

It is an arithmetic number, because the mean of its divisors is an integer number (140354270).

Almost surely, 2^1203036540 is an apocalyptic number.

1203036540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203036540 is an abundant number, since it is smaller than the sum of its proper divisors (2165465940).

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

1203036540 is a wasteful number, since it uses less digits than its factorization.

1203036540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20050621 (or 20050619 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1203036540 is about 34684.8171394920. The cubic root of 1203036540 is about 1063.5541489923.

Adding to 1203036540 its reverse (456303021), we get a palindrome (1659339561).

It can be divided in two parts, 1203036 and 540, that added together give a triangular number (1203576 = T₁₅₅₁).

The spelling of 1203036540 in words is "one billion, two hundred three million, thirty-six thousand, five hundred forty".