9725142 has 16 divisors (see below), whose sum is σ = 22228992. Its totient is φ = 2778600.

The previous prime is 9725141. The next prime is 9725143. The reversal of 9725142 is 2415279.

It is an interprime number because it is at equal distance from previous prime (9725141) and next prime (9725143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725141) 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 7 ways as a sum of consecutive naturals, for example, 115734 + ... + 115817.

It is an arithmetic number, because the mean of its divisors is an integer number (1389312).

Almost surely, 2^9725142 is an apocalyptic number.

9725142 is an abundant number, since it is smaller than the sum of its proper divisors (12503850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9725142 is a wasteful number, since it uses less digits than its factorization.

9725142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231563.

The product of its digits is 5040, while the sum is 30.

The square root of 9725142 is about 3118.5159932250. The cubic root of 9725142 is about 213.4512244447.

The spelling of 9725142 in words is "nine million, seven hundred twenty-five thousand, one hundred forty-two".