1254542 has 4 divisors (see below), whose sum is σ = 1881816. Its totient is φ = 627270.

The previous prime is 1254541. The next prime is 1254553. The reversal of 1254542 is 2454521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2454521 = 401 ⋅6121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313634 + ... + 313637.

It is an arithmetic number, because the mean of its divisors is an integer number (470454).

2^1254542 is an apocalyptic number.

1254542 is a deficient number, since it is larger than the sum of its proper divisors (627274).

1254542 is an equidigital number, since it uses as much as digits as its factorization.

1254542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627273.

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

The square root of 1254542 is about 1120.0633910632. The cubic root of 1254542 is about 107.8520493563.

The spelling of 1254542 in words is "one million, two hundred fifty-four thousand, five hundred forty-two".