169675642 has 4 divisors (see below), whose sum is σ = 254513466. Its totient is φ = 84837820.

The previous prime is 169675637. The next prime is 169675661. The reversal of 169675642 is 246576961.

169675642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246576961 = 113 ⋅2182097.

It can be written as a sum of positive squares in only one way, i.e., 163814401 + 5861241 = 12799^2 + 2421^2 .

It is a super-2 number, since 2×169675642² = 57579646976224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 169675592 and 169675601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42418909 + ... + 42418912.

Almost surely, 2^169675642 is an apocalyptic number.

169675642 is a deficient number, since it is larger than the sum of its proper divisors (84837824).

169675642 is an equidigital number, since it uses as much as digits as its factorization.

169675642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84837823.

The product of its digits is 544320, while the sum is 46.

The square root of 169675642 is about 13025.9603100885. The cubic root of 169675642 is about 553.6132812707.

The spelling of 169675642 in words is "one hundred sixty-nine million, six hundred seventy-five thousand, six hundred forty-two".