171240542 has 16 divisors (see below), whose sum is σ = 284807664. Its totient is φ = 76560000.

The previous prime is 171240469. The next prime is 171240583. The reversal of 171240542 is 245042171.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62459 + ... + 65142.

It is an arithmetic number, because the mean of its divisors is an integer number (17800479).

Almost surely, 2^171240542 is an apocalyptic number.

171240542 is a deficient number, since it is larger than the sum of its proper divisors (113567122).

171240542 is a wasteful number, since it uses less digits than its factorization.

171240542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127675.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 171240542 is about 13085.8909517083. The cubic root of 171240542 is about 555.3100472526.

The spelling of 171240542 in words is "one hundred seventy-one million, two hundred forty thousand, five hundred forty-two".