1161517070 has 48 divisors (see below), whose sum is σ = 2473357680. Its totient is φ = 391474944.

The previous prime is 1161517033. The next prime is 1161517079. The reversal of 1161517070 is 707151611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161517079) 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, 8822 + ... + 48998.

It is an arithmetic number, because the mean of its divisors is an integer number (51528285).

Almost surely, 2^1161517070 is an apocalyptic number.

1161517070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161517070 is an abundant number, since it is smaller than the sum of its proper divisors (1311840610).

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

1161517070 is a wasteful number, since it uses less digits than its factorization.

1161517070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40257 (or 40250 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 29.

The square root of 1161517070 is about 34081.0368093460. The cubic root of 1161517070 is about 1051.1754244187.

Adding to 1161517070 its reverse (707151611), we get a palindrome (1868668681).

The spelling of 1161517070 in words is "one billion, one hundred sixty-one million, five hundred seventeen thousand, seventy".