144697172 has 6 divisors (see below), whose sum is σ = 253220058. Its totient is φ = 72348584.

The previous prime is 144697151. The next prime is 144697177. The reversal of 144697172 is 271796441.

It can be written as a sum of positive squares in only one way, i.e., 142181776 + 2515396 = 11924^2 + 1586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144697177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18087143 + ... + 18087150.

It is an arithmetic number, because the mean of its divisors is an integer number (42203343).

Almost surely, 2^144697172 is an apocalyptic number.

It is an amenable number.

144697172 is a deficient number, since it is larger than the sum of its proper divisors (108522886).

144697172 is a wasteful number, since it uses less digits than its factorization.

144697172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36174297 (or 36174295 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 144697172 is about 12029.0137584093. The cubic root of 144697172 is about 524.9928005060.

The spelling of 144697172 in words is "one hundred forty-four million, six hundred ninety-seven thousand, one hundred seventy-two".