1172120070 has 96 divisors (see below), whose sum is σ = 3239170560. Its totient is φ = 269167680.

The previous prime is 1172120023. The next prime is 1172120071. The reversal of 1172120070 is 700212711.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172120071) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 114211 + ... + 124049.

It is an arithmetic number, because the mean of its divisors is an integer number (33741360).

Almost surely, 2^1172120070 is an apocalyptic number.

1172120070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172120070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619585280).

1172120070 is an abundant number, since it is smaller than the sum of its proper divisors (2067050490).

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

1172120070 is a wasteful number, since it uses less digits than its factorization.

1172120070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9879 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 1172120070 is about 34236.2391334095. The cubic root of 1172120070 is about 1054.3643198534.

Adding to 1172120070 its reverse (700212711), we get a palindrome (1872332781).

The spelling of 1172120070 in words is "one billion, one hundred seventy-two million, one hundred twenty thousand, seventy".