125144031 has 4 divisors (see below), whose sum is σ = 166858712. Its totient is φ = 83429352.

The previous prime is 125144017. The next prime is 125144039. The reversal of 125144031 is 130441521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125144031 - 2⁵ = 125143999 is a prime.

It is a super-2 number, since 2×125144031² = 31322056989857922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125143989 and 125144007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125144039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20857336 + ... + 20857341.

It is an arithmetic number, because the mean of its divisors is an integer number (41714678).

Almost surely, 2^125144031 is an apocalyptic number.

125144031 is a deficient number, since it is larger than the sum of its proper divisors (41714681).

125144031 is an equidigital number, since it uses as much as digits as its factorization.

125144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41714680.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 125144031 is about 11186.7792952217. The cubic root of 125144031 is about 500.1919676208.

Adding to 125144031 its reverse (130441521), we get a palindrome (255585552).

The spelling of 125144031 in words is "one hundred twenty-five million, one hundred forty-four thousand, thirty-one".