1151623 has 4 divisors (see below), whose sum is σ = 1256328. Its totient is φ = 1046920.

The previous prime is 1151611. The next prime is 1151629. The reversal of 1151623 is 3261511.

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-1151623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151629) 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, 52336 + ... + 52357.

It is an arithmetic number, because the mean of its divisors is an integer number (314082).

2^1151623 is an apocalyptic number.

1151623 is a deficient number, since it is larger than the sum of its proper divisors (104705).

1151623 is a wasteful number, since it uses less digits than its factorization.

1151623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104704.

The product of its digits is 180, while the sum is 19.

The square root of 1151623 is about 1073.1369903232. The cubic root of 1151623 is about 104.8182191097.

The spelling of 1151623 in words is "one million, one hundred fifty-one thousand, six hundred twenty-three".