1242054235 has 4 divisors (see below), whose sum is σ = 1490465088. Its totient is φ = 993643384.

The previous prime is 1242054227. The next prime is 1242054271. The reversal of 1242054235 is 5324502421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5324502421 = 7 ⋅760643203.

It is a cyclic number.

It is not a de Polignac number, because 1242054235 - 2³ = 1242054227 is a prime.

It is a Duffinian 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, 124205419 + ... + 124205428.

It is an arithmetic number, because the mean of its divisors is an integer number (372616272).

Almost surely, 2^1242054235 is an apocalyptic number.

1242054235 is a deficient number, since it is larger than the sum of its proper divisors (248410853).

1242054235 is an equidigital number, since it uses as much as digits as its factorization.

1242054235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248410852.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1242054235 is about 35242.7898299780. The cubic root of 1242054235 is about 1074.9300073412.

Adding to 1242054235 its reverse (5324502421), we get a palindrome (6566556656).

The spelling of 1242054235 in words is "one billion, two hundred forty-two million, fifty-four thousand, two hundred thirty-five".