125203415 has 16 divisors (see below), whose sum is σ = 153204480. Its totient is φ = 98200320.

The previous prime is 125203399. The next prime is 125203417. The reversal of 125203415 is 514302521.

It is not a de Polignac number, because 125203415 - 2⁴ = 125203399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125203417) 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 15 ways as a sum of consecutive naturals, for example, 145667 + ... + 146523.

It is an arithmetic number, because the mean of its divisors is an integer number (9575280).

Almost surely, 2^125203415 is an apocalyptic number.

125203415 is a deficient number, since it is larger than the sum of its proper divisors (28001065).

125203415 is an equidigital number, since it uses as much as digits as its factorization.

125203415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125203415 is about 11189.4331849294. The cubic root of 125203415 is about 500.2710730123.

Adding to 125203415 its reverse (514302521), we get a palindrome (639505936).

The spelling of 125203415 in words is "one hundred twenty-five million, two hundred three thousand, four hundred fifteen".