172061444 has 12 divisors (see below), whose sum is σ = 301331100. Its totient is φ = 85966848.

The previous prime is 172061441. The next prime is 172061489. The reversal of 172061444 is 444160271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1236544 + 170824900 = 1112^2 + 13070^2 .

It is a super-2 number, since 2×172061444² = 59210281022730272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172061441) 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, 9629 + ... + 20900.

It is an arithmetic number, because the mean of its divisors is an integer number (25110925).

Almost surely, 2^172061444 is an apocalyptic number.

It is an amenable number.

172061444 is a deficient number, since it is larger than the sum of its proper divisors (129269656).

172061444 is a wasteful number, since it uses less digits than its factorization.

172061444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31942 (or 31940 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 172061444 is about 13117.2193699732. The cubic root of 172061444 is about 556.1959913223.

The spelling of 172061444 in words is "one hundred seventy-two million, sixty-one thousand, four hundred forty-four".