1241512540 has 48 divisors (see below), whose sum is σ = 2630916288. Its totient is φ = 492107264.

The previous prime is 1241512537. The next prime is 1241512543. The reversal of 1241512540 is 452151421.

It is an interprime number because it is at equal distance from previous prime (1241512537) and next prime (1241512543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241512543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1225074 + ... + 1226086.

It is an arithmetic number, because the mean of its divisors is an integer number (54810756).

Almost surely, 2^1241512540 is an apocalyptic number.

1241512540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241512540 is an abundant number, since it is smaller than the sum of its proper divisors (1389403748).

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

1241512540 is a wasteful number, since it uses less digits than its factorization.

1241512540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1241512540 is about 35235.1038028839. The cubic root of 1241512540 is about 1074.7737154863.

Adding to 1241512540 its reverse (452151421), we get a palindrome (1693663961).

The spelling of 1241512540 in words is "one billion, two hundred forty-one million, five hundred twelve thousand, five hundred forty".