125435278 has 4 divisors (see below), whose sum is σ = 188152920. Its totient is φ = 62717638.

The previous prime is 125435227. The next prime is 125435281. The reversal of 125435278 is 872534521.

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

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, 31358818 + ... + 31358821.

It is an arithmetic number, because the mean of its divisors is an integer number (47038230).

Almost surely, 2^125435278 is an apocalyptic number.

125435278 is a deficient number, since it is larger than the sum of its proper divisors (62717642).

125435278 is an equidigital number, since it uses as much as digits as its factorization.

125435278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62717641.

The product of its digits is 67200, while the sum is 37.

The square root of 125435278 is about 11199.7891944447. The cubic root of 125435278 is about 500.5796983067.

Adding to 125435278 its reverse (872534521), we get a palindrome (997969799).

The spelling of 125435278 in words is "one hundred twenty-five million, four hundred thirty-five thousand, two hundred seventy-eight".