171225454 has 16 divisors (see below), whose sum is σ = 279680400. Its totient is φ = 78309504.

The previous prime is 171225451. The next prime is 171225487. The reversal of 171225454 is 454522171.

171225454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×171225454² = 58636312195012232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171225451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76587 + ... + 78790.

It is an arithmetic number, because the mean of its divisors is an integer number (17480025).

Almost surely, 2^171225454 is an apocalyptic number.

171225454 is a deficient number, since it is larger than the sum of its proper divisors (108454946).

171225454 is a wasteful number, since it uses less digits than its factorization.

171225454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155427.

The product of its digits is 11200, while the sum is 31.

The square root of 171225454 is about 13085.3144402418. The cubic root of 171225454 is about 555.2937373219.

It can be divided in two parts, 171 and 225454, that added together give a square (225625 = 475²).

The spelling of 171225454 in words is "one hundred seventy-one million, two hundred twenty-five thousand, four hundred fifty-four".