169230947 has 4 divisors (see below), whose sum is σ = 170728680. Its totient is φ = 167733216.

The previous prime is 169230931. The next prime is 169230959. The reversal of 169230947 is 749032961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749032961 = 1103 ⋅679087.

It is a cyclic number.

It is not a de Polignac number, because 169230947 - 2⁴ = 169230931 is a prime.

It is a super-2 number, since 2×169230947² = 57278226845033618, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169230907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748697 + ... + 748922.

It is an arithmetic number, because the mean of its divisors is an integer number (42682170).

Almost surely, 2^169230947 is an apocalyptic number.

169230947 is a deficient number, since it is larger than the sum of its proper divisors (1497733).

169230947 is a wasteful number, since it uses less digits than its factorization.

169230947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497732.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 169230947 is about 13008.8795443728. The cubic root of 169230947 is about 553.1292116972.

The spelling of 169230947 in words is "one hundred sixty-nine million, two hundred thirty thousand, nine hundred forty-seven".