1156923 has 24 divisors (see below), whose sum is σ = 1813840. Its totient is φ = 737748.

The previous prime is 1156907. The next prime is 1156927. The reversal of 1156923 is 3296511.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 1156923 - 2⁴ = 1156907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50290 + ... + 50312.

2^1156923 is an apocalyptic number.

1156923 is a deficient number, since it is larger than the sum of its proper divisors (656917).

1156923 is an frugal number, since it uses more digits than its factorization.

1156923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 26 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 1156923 is about 1075.6035515003. The cubic root of 1156923 is about 104.9787712185.

Multiplying 1156923 by its sum of digits (27), we get a square (31236921 = 5589²).

1156923 divided by its sum of digits (27) gives a square (42849 = 207²).

The spelling of 1156923 in words is "one million, one hundred fifty-six thousand, nine hundred twenty-three".