1013812540 has 24 divisors (see below), whose sum is σ = 2292776640. Its totient is φ = 374330688.

The previous prime is 1013812519. The next prime is 1013812549. The reversal of 1013812540 is 452183101.

It is a super-2 number, since 2×1013812540² = 2055631732522503200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013812549) 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 7 ways as a sum of consecutive naturals, for example, 1949380 + ... + 1949899.

It is an arithmetic number, because the mean of its divisors is an integer number (95532360).

Almost surely, 2^1013812540 is an apocalyptic number.

1013812540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013812540 is an abundant number, since it is smaller than the sum of its proper divisors (1278964100).

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

1013812540 is a wasteful number, since it uses less digits than its factorization.

1013812540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899301 (or 3899299 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1013812540 is about 31840.4230499533. The cubic root of 1013812540 is about 1004.5831427129.

Adding to 1013812540 its reverse (452183101), we get a palindrome (1465995641).

The spelling of 1013812540 in words is "one billion, thirteen million, eight hundred twelve thousand, five hundred forty".