171496642 has 16 divisors (see below), whose sum is σ = 264825792. Its totient is φ = 83245680.

The previous prime is 171496639. The next prime is 171496649. The reversal of 171496642 is 246694171.

It is a super-2 number, since 2×171496642² = 58822196434552328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171496595 and 171496604.

It is not an unprimeable number, because it can be changed into a prime (171496649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8392 + ... + 20332.

It is an arithmetic number, because the mean of its divisors is an integer number (16551612).

Almost surely, 2^171496642 is an apocalyptic number.

171496642 is a deficient number, since it is larger than the sum of its proper divisors (93329150).

171496642 is a wasteful number, since it uses less digits than its factorization.

171496642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153.

The product of its digits is 72576, while the sum is 40.

The square root of 171496642 is about 13095.6726440454. The cubic root of 171496642 is about 555.5867419797.

The spelling of 171496642 in words is "one hundred seventy-one million, four hundred ninety-six thousand, six hundred forty-two".