1245542 has 8 divisors (see below), whose sum is σ = 1949616. Its totient is φ = 595672.

The previous prime is 1245529. The next prime is 1245551. The reversal of 1245542 is 2455421.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13493 + ... + 13584.

It is an arithmetic number, because the mean of its divisors is an integer number (243702).

2^1245542 is an apocalyptic number.

1245542 is a deficient number, since it is larger than the sum of its proper divisors (704074).

1245542 is a wasteful number, since it uses less digits than its factorization.

1245542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27102.

The product of its digits is 1600, while the sum is 23.

The square root of 1245542 is about 1116.0385298008. The cubic root of 1245542 is about 107.5935223640.

It can be divided in two parts, 12 and 45542, that added together give a palindrome (45554).

The spelling of 1245542 in words is "one million, two hundred forty-five thousand, five hundred forty-two".