172144514 has 4 divisors (see below), whose sum is σ = 258216774. Its totient is φ = 86072256.

The previous prime is 172144487. The next prime is 172144517. The reversal of 172144514 is 415441271.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 138886225 + 33258289 = 11785^2 + 5767^2 .

It is not an unprimeable number, because it can be changed into a prime (172144517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43036127 + ... + 43036130.

Almost surely, 2^172144514 is an apocalyptic number.

172144514 is a deficient number, since it is larger than the sum of its proper divisors (86072260).

172144514 is an equidigital number, since it uses as much as digits as its factorization.

172144514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86072259.

The product of its digits is 4480, while the sum is 29.

The square root of 172144514 is about 13120.3854364115. The cubic root of 172144514 is about 556.2854860330.

Adding to 172144514 its reverse (415441271), we get a palindrome (587585785).

The spelling of 172144514 in words is "one hundred seventy-two million, one hundred forty-four thousand, five hundred fourteen".