125554169 has 8 divisors (see below), whose sum is σ = 136732680. Its totient is φ = 114592896.

The previous prime is 125554141. The next prime is 125554193. The reversal of 125554169 is 961455521.

It can be written as a sum of positive squares in 4 ways, for example, as 4840000 + 120714169 = 2200^2 + 10987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125554169 - 2¹⁶ = 125488633 is a prime.

It is a super-2 number, since 2×125554169² = 31527698706561122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125554139) 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, 53102 + ... + 55415.

It is an arithmetic number, because the mean of its divisors is an integer number (17091585).

Almost surely, 2^125554169 is an apocalyptic number.

It is an amenable number.

125554169 is a deficient number, since it is larger than the sum of its proper divisors (11178511).

125554169 is a wasteful number, since it uses less digits than its factorization.

125554169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108619.

The product of its digits is 54000, while the sum is 38.

The square root of 125554169 is about 11205.0956711668. The cubic root of 125554169 is about 500.7378027587.

The spelling of 125554169 in words is "one hundred twenty-five million, five hundred fifty-four thousand, one hundred sixty-nine".