125533742 has 4 divisors (see below), whose sum is σ = 188300616. Its totient is φ = 62766870.

The previous prime is 125533717. The next prime is 125533783. The reversal of 125533742 is 247335521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247335521 = 19 ⋅13017659.

It is a junction number, because it is equal to n+sod(n) for n = 125533699 and 125533708.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31383434 + ... + 31383437.

It is an arithmetic number, because the mean of its divisors is an integer number (47075154).

Almost surely, 2^125533742 is an apocalyptic number.

125533742 is a deficient number, since it is larger than the sum of its proper divisors (62766874).

125533742 is an equidigital number, since it uses as much as digits as its factorization.

125533742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62766873.

The product of its digits is 25200, while the sum is 32.

The square root of 125533742 is about 11204.1841291546. The cubic root of 125533742 is about 500.7106454875.

The spelling of 125533742 in words is "one hundred twenty-five million, five hundred thirty-three thousand, seven hundred forty-two".