172136542 has 16 divisors (see below), whose sum is σ = 272154240. Its totient is φ = 81430488.

The previous prime is 172136539. The next prime is 172136581. The reversal of 172136542 is 245631271.

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, 31153 + ... + 36259.

It is an arithmetic number, because the mean of its divisors is an integer number (17009640).

Almost surely, 2^172136542 is an apocalyptic number.

172136542 is a deficient number, since it is larger than the sum of its proper divisors (100017698).

172136542 is a wasteful number, since it uses less digits than its factorization.

172136542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015.

The product of its digits is 10080, while the sum is 31.

The square root of 172136542 is about 13120.0816308436. The cubic root of 172136542 is about 556.2768987203.

The spelling of 172136542 in words is "one hundred seventy-two million, one hundred thirty-six thousand, five hundred forty-two".