1173212560 has 40 divisors (see below), whose sum is σ = 2937546360. Its totient is φ = 433185792.

The previous prime is 1173212531. The next prime is 1173212561. The reversal of 1173212560 is 652123711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 227527056 + 945685504 = 15084^2 + 30752^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1173212561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563005 + ... + 565084.

It is an arithmetic number, because the mean of its divisors is an integer number (73438659).

Almost surely, 2^1173212560 is an apocalyptic number.

1173212560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173212560 is an abundant number, since it is smaller than the sum of its proper divisors (1764333800).

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

1173212560 is a wasteful number, since it uses less digits than its factorization.

1173212560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128115 (or 1128109 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1173212560 is about 34252.1905868807. The cubic root of 1173212560 is about 1054.6917961972.

The spelling of 1173212560 in words is "one billion, one hundred seventy-three million, two hundred twelve thousand, five hundred sixty".