125445131 has 8 divisors (see below), whose sum is σ = 144786144. Its totient is φ = 106459200.

The previous prime is 125445119. The next prime is 125445167. The reversal of 125445131 is 131544521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125445131 is a prime.

It is a super-2 number, since 2×125445131² = 31472961783214322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125445131.

It is not an unprimeable number, because it can be changed into a prime (125445101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88010 + ... + 89423.

It is an arithmetic number, because the mean of its divisors is an integer number (18098268).

Almost surely, 2^125445131 is an apocalyptic number.

125445131 is a deficient number, since it is larger than the sum of its proper divisors (19341013).

125445131 is a wasteful number, since it uses less digits than its factorization.

125445131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177541.

The product of its digits is 2400, while the sum is 26.

The square root of 125445131 is about 11200.2290601577. The cubic root of 125445131 is about 500.5928048870.

Adding to 125445131 its reverse (131544521), we get a palindrome (256989652).

The spelling of 125445131 in words is "one hundred twenty-five million, four hundred forty-five thousand, one hundred thirty-one".