169631242 has 8 divisors (see below), whose sum is σ = 277578432. Its totient is φ = 77105100.

The previous prime is 169631207. The next prime is 169631257. The reversal of 169631242 is 242136961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 169631198 and 169631207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3855234 + ... + 3855277.

It is an arithmetic number, because the mean of its divisors is an integer number (34697304).

Almost surely, 2^169631242 is an apocalyptic number.

169631242 is a deficient number, since it is larger than the sum of its proper divisors (107947190).

169631242 is a wasteful number, since it uses less digits than its factorization.

169631242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710524.

The product of its digits is 15552, while the sum is 34.

The square root of 169631242 is about 13024.2559096480. The cubic root of 169631242 is about 553.5649880022.

The spelling of 169631242 in words is "one hundred sixty-nine million, six hundred thirty-one thousand, two hundred forty-two".