125544043 has 4 divisors (see below), whose sum is σ = 125601088. Its totient is φ = 125487000.

The previous prime is 125544019. The next prime is 125544049. The reversal of 125544043 is 340445521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340445521 = 13 ⋅26188117.

It is a cyclic number.

It is not a de Polignac number, because 125544043 - 2⁵ = 125544011 is a prime.

It is a super-2 number, since 2×125544043² = 31522613465571698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125544049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25083 + ... + 29668.

It is an arithmetic number, because the mean of its divisors is an integer number (31400272).

Almost surely, 2^125544043 is an apocalyptic number.

125544043 is a deficient number, since it is larger than the sum of its proper divisors (57045).

125544043 is an equidigital number, since it uses as much as digits as its factorization.

125544043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57044.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 125544043 is about 11204.6438140621. The cubic root of 125544043 is about 500.7243408207.

Adding to 125544043 its reverse (340445521), we get a palindrome (465989564).

The spelling of 125544043 in words is "one hundred twenty-five million, five hundred forty-four thousand, forty-three".