7539142 has 8 divisors (see below), whose sum is σ = 12178656. Its totient is φ = 3479592.

The previous prime is 7539137. The next prime is 7539149. The reversal of 7539142 is 2419357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7539149) 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 3 ways as a sum of consecutive naturals, for example, 144958 + ... + 145009.

It is an arithmetic number, because the mean of its divisors is an integer number (1522332).

Almost surely, 2^7539142 is an apocalyptic number.

7539142 is a deficient number, since it is larger than the sum of its proper divisors (4639514).

7539142 is a wasteful number, since it uses less digits than its factorization.

7539142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289982.

The product of its digits is 7560, while the sum is 31.

The square root of 7539142 is about 2745.7498065192. The cubic root of 7539142 is about 196.0833152667.

The spelling of 7539142 in words is "seven million, five hundred thirty-nine thousand, one hundred forty-two".