125551145 has 16 divisors (see below), whose sum is σ = 160608000. Its totient is φ = 93944448.

The previous prime is 125551133. The next prime is 125551163. The reversal of 125551145 is 541155521.

It is a cyclic number.

It is not a de Polignac number, because 125551145 - 2¹⁰ = 125550121 is a prime.

It is a super-2 number, since 2×125551145² = 31526180021622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860 + ... + 15869.

It is an arithmetic number, because the mean of its divisors is an integer number (10038000).

Almost surely, 2^125551145 is an apocalyptic number.

It is an amenable number.

125551145 is a deficient number, since it is larger than the sum of its proper divisors (35056855).

125551145 is a wasteful number, since it uses less digits than its factorization.

125551145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16832.

The product of its digits is 5000, while the sum is 29.

The square root of 125551145 is about 11204.9607317473. The cubic root of 125551145 is about 500.7337825994.

The spelling of 125551145 in words is "one hundred twenty-five million, five hundred fifty-one thousand, one hundred forty-five".