1152170531 has 4 divisors (see below), whose sum is σ = 1156271064. Its totient is φ = 1148070000.

The previous prime is 1152170477. The next prime is 1152170557. The reversal of 1152170531 is 1350712511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1350712511 = 1301 ⋅1038211.

It is a cyclic number.

It is not a de Polignac number, because 1152170531 - 2¹⁴ = 1152154147 is a prime.

It is a super-2 number, since 2×1152170531² = 2654993865009643922, which contains 22 as substring.

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 1152170531.

It is not an unprimeable number, because it can be changed into a prime (1152170581) 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, 2049845 + ... + 2050406.

It is an arithmetic number, because the mean of its divisors is an integer number (289067766).

Almost surely, 2^1152170531 is an apocalyptic number.

1152170531 is a deficient number, since it is larger than the sum of its proper divisors (4100533).

1152170531 is an equidigital number, since it uses as much as digits as its factorization.

1152170531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100532.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 1152170531 is about 33943.6375628777. The cubic root of 1152170531 is about 1048.3482817113.

The spelling of 1152170531 in words is "one billion, one hundred fifty-two million, one hundred seventy thousand, five hundred thirty-one".