1245067540 has 12 divisors (see below), whose sum is σ = 2614641876. Its totient is φ = 498027008.

The previous prime is 1245067531. The next prime is 1245067559. The reversal of 1245067540 is 457605421.

It can be written as a sum of positive squares in 2 ways, for example, as 910470276 + 334597264 = 30174^2 + 18292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1245067496 and 1245067505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31126669 + ... + 31126708.

It is an arithmetic number, because the mean of its divisors is an integer number (217886823).

Almost surely, 2^1245067540 is an apocalyptic number.

1245067540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245067540 is an abundant number, since it is smaller than the sum of its proper divisors (1369574336).

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

1245067540 is a wasteful number, since it uses less digits than its factorization.

1245067540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62253386 (or 62253384 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1245067540 is about 35285.5145916848. The cubic root of 1245067540 is about 1075.7985888634.

The spelling of 1245067540 in words is "one billion, two hundred forty-five million, sixty-seven thousand, five hundred forty".