172241214154 has 4 divisors (see below), whose sum is σ = 258361821234. Its totient is φ = 86120607076.

The previous prime is 172241214139. The next prime is 172241214157. The reversal of 172241214154 is 451412142271.

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., 92217290929 + 80023923225 = 303673^2 + 282885^2 .

It is not an unprimeable number, because it can be changed into a prime (172241214157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43060303537 + ... + 43060303540.

Almost surely, 2^172241214154 is an apocalyptic number.

172241214154 is a deficient number, since it is larger than the sum of its proper divisors (86120607080).

172241214154 is an equidigital number, since it uses as much as digits as its factorization.

172241214154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86120607079.

The product of its digits is 17920, while the sum is 34.

The spelling of 172241214154 in words is "one hundred seventy-two billion, two hundred forty-one million, two hundred fourteen thousand, one hundred fifty-four".