1204545542 has 4 divisors (see below), whose sum is σ = 1806818316. Its totient is φ = 602272770.

The previous prime is 1204545539. The next prime is 1204545547. The reversal of 1204545542 is 2455454021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2455454021 = 28513 ⋅86117.

It is a junction number, because it is equal to n+sod(n) for n = 1204545499 and 1204545508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204545547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301136384 + ... + 301136387.

It is an arithmetic number, because the mean of its divisors is an integer number (451704579).

Almost surely, 2^1204545542 is an apocalyptic number.

1204545542 is a deficient number, since it is larger than the sum of its proper divisors (602272774).

1204545542 is an equidigital number, since it uses as much as digits as its factorization.

1204545542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602272773.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 1204545542 is about 34706.5633850429. The cubic root of 1204545542 is about 1063.9986449895.

Adding to 1204545542 its reverse (2455454021), we get a palindrome (3659999563).

The spelling of 1204545542 in words is "one billion, two hundred four million, five hundred forty-five thousand, five hundred forty-two".