1172741140 has 12 divisors (see below), whose sum is σ = 2462756436. Its totient is φ = 469096448.

The previous prime is 1172741099. The next prime is 1172741177. The reversal of 1172741140 is 411472711.

It can be written as a sum of positive squares in 2 ways, for example, as 437897476 + 734843664 = 20926^2 + 27108^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1172741099 and 1172741108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29318509 + ... + 29318548.

It is an arithmetic number, because the mean of its divisors is an integer number (205229703).

Almost surely, 2^1172741140 is an apocalyptic number.

1172741140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172741140 is an abundant number, since it is smaller than the sum of its proper divisors (1290015296).

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

1172741140 is a wasteful number, since it uses less digits than its factorization.

1172741140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58637066 (or 58637064 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 1172741140 is about 34245.3082917938. The cubic root of 1172741140 is about 1054.5505119339.

The spelling of 1172741140 in words is "one billion, one hundred seventy-two million, seven hundred forty-one thousand, one hundred forty".