945542 has 16 divisors (see below), whose sum is σ = 1566432. Its totient is φ = 425280.

The previous prime is 945521. The next prime is 945547. The reversal of 945542 is 245549.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 945542.

It is not an unprimeable number, because it can be changed into a prime (945547) by changing a digit.

945542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 623 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (97902).

2⁹⁴⁵⁵⁴² is an apocalyptic number.

945542 is a deficient number, since it is larger than the sum of its proper divisors (620890).

945542 is a wasteful number, since it uses less digits than its factorization.

945542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its digits is 7200, while the sum is 29.

The square root of 945542 is about 972.3898395191. The cubic root of 945542 is about 98.1507467564.

The spelling of 945542 in words is "nine hundred forty-five thousand, five hundred forty-two".