1150905 has 32 divisors (see below), whose sum is σ = 2145024. Its totient is φ = 516096.

The previous prime is 1150879. The next prime is 1150909. The reversal of 1150905 is 5090511.

It is a happy number.

It is not a de Polignac number, because 1150905 - 2⁵ = 1150873 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10129 + ... + 10241.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2^1150905 is an apocalyptic number.

1150905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1150905 is a deficient number, since it is larger than the sum of its proper divisors (994119).

1150905 is a wasteful number, since it uses less digits than its factorization.

1150905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1150905 is about 1072.8024049190. The cubic root of 1150905 is about 104.7964309819.

It can be divided in two parts, 11 and 50905, that multiplied together give a palindrome (559955).

The spelling of 1150905 in words is "one million, one hundred fifty thousand, nine hundred five".