1152551 has 4 divisors (see below), whose sum is σ = 1180704. Its totient is φ = 1124400.

The previous prime is 1152527. The next prime is 1152589. The reversal of 1152551 is 1552511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152551 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152751) 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, 14015 + ... + 14096.

It is an arithmetic number, because the mean of its divisors is an integer number (295176).

2^1152551 is an apocalyptic number.

1152551 is a deficient number, since it is larger than the sum of its proper divisors (28153).

1152551 is an equidigital number, since it uses as much as digits as its factorization.

1152551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28152.

The product of its digits is 250, while the sum is 20.

The square root of 1152551 is about 1073.5692804845. The cubic root of 1152551 is about 104.8463663973.

The spelling of 1152551 in words is "one million, one hundred fifty-two thousand, five hundred fifty-one".