1229542 has 24 divisors (see below), whose sum is σ = 2069496. Its totient is φ = 545664.

The previous prime is 1229531. The next prime is 1229561. The reversal of 1229542 is 2459221.

Its product of digits (1440) is a multiple of the sum of its prime factors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28573 + ... + 28615.

It is an arithmetic number, because the mean of its divisors is an integer number (86229).

2^1229542 is an apocalyptic number.

1229542 is a deficient number, since it is larger than the sum of its proper divisors (839954).

1229542 is a wasteful number, since it uses less digits than its factorization.

1229542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 91 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1229542 is about 1108.8471490697. The cubic root of 1229542 is about 107.1308266704.

It can be divided in two parts, 1229 and 542, that added together give a palindrome (1771).

The spelling of 1229542 in words is "one million, two hundred twenty-nine thousand, five hundred forty-two".