1205171552 has 24 divisors (see below), whose sum is σ = 2555196336. Its totient is φ = 556232832.

The previous prime is 1205171533. The next prime is 1205171557. The reversal of 1205171552 is 2551715021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205171557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448108 + ... + 1448939.

It is an arithmetic number, because the mean of its divisors is an integer number (106466514).

Almost surely, 2^1205171552 is an apocalyptic number.

It is an amenable number.

1205171552 is an abundant number, since it is smaller than the sum of its proper divisors (1350024784).

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

1205171552 is a wasteful number, since it uses less digits than its factorization.

1205171552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897070 (or 2897062 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 1205171552 is about 34715.5808247536. The cubic root of 1205171552 is about 1064.1829353613.

Adding to 1205171552 its reverse (2551715021), we get a palindrome (3756886573).

The spelling of 1205171552 in words is "one billion, two hundred five million, one hundred seventy-one thousand, five hundred fifty-two".