125243415 has 48 divisors (see below), whose sum is σ = 245621376. Its totient is φ = 60717600.

The previous prime is 125243411. The next prime is 125243423. The reversal of 125243415 is 514342521.

125243415 is a `hidden beast` number, since 1 + 2 + 5 + 243 + 415 = 666.

It is not a de Polignac number, because 125243415 - 2² = 125243411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125243411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8680 + ... + 18050.

It is an arithmetic number, because the mean of its divisors is an integer number (5117112).

Almost surely, 2^125243415 is an apocalyptic number.

125243415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125243415 is a deficient number, since it is larger than the sum of its proper divisors (120377961).

125243415 is an equidigital number, since it uses as much as digits as its factorization.

125243415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402 (or 9390 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 125243415 is about 11191.2204428293. The cubic root of 125243415 is about 500.3243428912.

Adding to 125243415 its reverse (514342521), we get a palindrome (639585936).

The spelling of 125243415 in words is "one hundred twenty-five million, two hundred forty-three thousand, four hundred fifteen".