125040442 has 8 divisors (see below), whose sum is σ = 188543232. Its totient is φ = 62192700.

The previous prime is 125040439. The next prime is 125040449. The reversal of 125040442 is 244040521.

It is a happy number.

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

It is a super-2 number, since 2×125040442² = 31270224271110728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125040449) 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, 163284 + ... + 164047.

It is an arithmetic number, because the mean of its divisors is an integer number (23567904).

Almost surely, 2^125040442 is an apocalyptic number.

125040442 is a deficient number, since it is larger than the sum of its proper divisors (63502790).

125040442 is a wasteful number, since it uses less digits than its factorization.

125040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327524.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 125040442 is about 11182.1483624570. The cubic root of 125040442 is about 500.0539168524.

Adding to 125040442 its reverse (244040521), we get a palindrome (369080963).

The spelling of 125040442 in words is "one hundred twenty-five million, forty thousand, four hundred forty-two".