1161552 has 40 divisors (see below), whose sum is σ = 3430336. Its totient is φ = 331776.

The previous prime is 1161551. The next prime is 1161553. The reversal of 1161552 is 2551611.

It is an interprime number because it is at equal distance from previous prime (1161551) and next prime (1161553).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161551) 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, 1393 + ... + 2064.

2^1161552 is an apocalyptic number.

1161552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1161552 is an abundant number, since it is smaller than the sum of its proper divisors (2268784).

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

1161552 is a wasteful number, since it uses less digits than its factorization.

1161552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475 (or 3469 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 1161552 is about 1077.7532185060. The cubic root of 1161552 is about 105.1185961555.

The spelling of 1161552 in words is "one million, one hundred sixty-one thousand, five hundred fifty-two".