72378125 has 48 divisors (see below), whose sum is σ = 101243520. Its totient is φ = 51480000.

The previous prime is 72378121. The next prime is 72378127. The reversal of 72378125 is 52187327.

It is not a de Polignac number, because 72378125 - 2² = 72378121 is a prime.

Its product of digits (23520) is a multiple of the sum of its prime factors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72378121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1365599 + ... + 1365651.

It is an arithmetic number, because the mean of its divisors is an integer number (2109240).

Almost surely, 2^72378125 is an apocalyptic number.

It is an amenable number.

72378125 is a deficient number, since it is larger than the sum of its proper divisors (28865395).

72378125 is an equidigital number, since it uses as much as digits as its factorization.

72378125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 100 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 72378125 is about 8507.5334263228. The cubic root of 72378125 is about 416.7437635115.

The spelling of 72378125 in words is "seventy-two million, three hundred seventy-eight thousand, one hundred twenty-five".