172542794 has 8 divisors (see below), whose sum is σ = 262090560. Its totient is φ = 85179276.

The previous prime is 172542793. The next prime is 172542817. The reversal of 172542794 is 497245271.

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

It is a super-2 number, since 2×172542794² = 59542031522652872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172542793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545864 + ... + 546179.

It is an arithmetic number, because the mean of its divisors is an integer number (32761320).

Almost surely, 2^172542794 is an apocalyptic number.

172542794 is a deficient number, since it is larger than the sum of its proper divisors (89547766).

172542794 is a wasteful number, since it uses less digits than its factorization.

172542794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092124.

The product of its digits is 141120, while the sum is 41.

The square root of 172542794 is about 13135.5545752739. The cubic root of 172542794 is about 556.7141699136.

The spelling of 172542794 in words is "one hundred seventy-two million, five hundred forty-two thousand, seven hundred ninety-four".