1260122578 has 16 divisors (see below), whose sum is σ = 2220636096. Its totient is φ = 528722640.

The previous prime is 1260122557. The next prime is 1260122599. The reversal of 1260122578 is 8752210621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1260122557) and next prime (1260122599).

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, 2202726 + ... + 2203297.

It is an arithmetic number, because the mean of its divisors is an integer number (138789756).

Almost surely, 2^1260122578 is an apocalyptic number.

1260122578 is a deficient number, since it is larger than the sum of its proper divisors (960513518).

1260122578 is a wasteful number, since it uses less digits than its factorization.

1260122578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406049.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1260122578 is about 35498.2052785771. The cubic root of 1260122578 is about 1080.1173220740.

The spelling of 1260122578 in words is "one billion, two hundred sixty million, one hundred twenty-two thousand, five hundred seventy-eight".