1078523775 has 192 divisors, whose sum is σ = 2485555200. Its totient is φ = 447068160.

The previous prime is 1078523773. The next prime is 1078523777. The reversal of 1078523775 is 5773258701.

It is an interprime number because it is at equal distance from previous prime (1078523773) and next prime (1078523777).

It is not a de Polignac number, because 1078523775 - 2¹ = 1078523773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1078523775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078523773) 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 191 ways as a sum of consecutive naturals, for example, 2329194 + ... + 2329656.

It is an arithmetic number, because the mean of its divisors is an integer number (12945600).

Almost surely, 2^1078523775 is an apocalyptic number.

1078523775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1078523775 is an abundant number, since it is smaller than the sum of its proper divisors (1407031425).

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

1078523775 is a wasteful number, since it uses less digits than its factorization.

1078523775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 1078523775 is about 32840.8857219168. The cubic root of 1078523775 is about 1025.5178901811.

The spelling of 1078523775 in words is "one billion, seventy-eight million, five hundred twenty-three thousand, seven hundred seventy-five".