169230431 has 4 divisors (see below), whose sum is σ = 172423512. Its totient is φ = 166037352.

The previous prime is 169230407. The next prime is 169230469. The reversal of 169230431 is 134032961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134032961 = 173 ⋅774757.

It is a cyclic number.

It is not a de Polignac number, because 169230431 - 2¹⁴ = 169214047 is a prime.

It is a super-2 number, since 2×169230431² = 57277877552891522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169230394 and 169230403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169230401) 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, 1596461 + ... + 1596566.

It is an arithmetic number, because the mean of its divisors is an integer number (43105878).

Almost surely, 2^169230431 is an apocalyptic number.

169230431 is a deficient number, since it is larger than the sum of its proper divisors (3193081).

169230431 is an equidigital number, since it uses as much as digits as its factorization.

169230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193080.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 169230431 is about 13008.8597117503. The cubic root of 169230431 is about 553.1286495168.

It can be divided in two parts, 1692 and 30431, that added together give a palindrome (32123).

The spelling of 169230431 in words is "one hundred sixty-nine million, two hundred thirty thousand, four hundred thirty-one".