1260745542 has 48 divisors (see below), whose sum is σ = 3138250752. Its totient is φ = 358320240.

The previous prime is 1260745537. The next prime is 1260745547. The reversal of 1260745542 is 2455470621.

It is a happy number.

1260745542 is a `hidden beast` number, since 1 + 2 + 607 + 4 + 5 + 5 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (1260745537) and next prime (1260745547).

It is a junction number, because it is equal to n+sod(n) for n = 1260745497 and 1260745506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260745547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2128 + ... + 50259.

It is an arithmetic number, because the mean of its divisors is an integer number (65380224).

Almost surely, 2^1260745542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260745542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569125376).

1260745542 is an abundant number, since it is smaller than the sum of its proper divisors (1877505210).

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

1260745542 is a wasteful number, since it uses less digits than its factorization.

1260745542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52593 (or 52590 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 1260745542 is about 35506.9787788260. The cubic root of 1260745542 is about 1080.2952844848.

The spelling of 1260745542 in words is "one billion, two hundred sixty million, seven hundred forty-five thousand, five hundred forty-two".