1164227731 has 16 divisors (see below), whose sum is σ = 1230038784. Its totient is φ = 1099752544.

The previous prime is 1164227719. The next prime is 1164227749. The reversal of 1164227731 is 1377224611.

It is not a de Polignac number, because 1164227731 - 2⁵ = 1164227699 is a prime.

It is a super-2 number, since 2×1164227731² = 2710852419258816722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164221731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148781 + ... + 1149793.

It is an arithmetic number, because the mean of its divisors is an integer number (76877424).

Almost surely, 2^1164227731 is an apocalyptic number.

1164227731 is a deficient number, since it is larger than the sum of its proper divisors (65811053).

1164227731 is a wasteful number, since it uses less digits than its factorization.

1164227731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its digits is 14112, while the sum is 34.

The square root of 1164227731 is about 34120.7815121518. The cubic root of 1164227731 is about 1051.9925071271.

The spelling of 1164227731 in words is "one billion, one hundred sixty-four million, two hundred twenty-seven thousand, seven hundred thirty-one".