1242052345 has 8 divisors (see below), whose sum is σ = 1511455680. Its totient is φ = 979646640.

The previous prime is 1242052337. The next prime is 1242052373. The reversal of 1242052345 is 5432502421.

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

It is not a de Polignac number, because 1242052345 - 2³ = 1242052337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749015 + ... + 1749724.

It is an arithmetic number, because the mean of its divisors is an integer number (188931960).

Almost surely, 2^1242052345 is an apocalyptic number.

It is an amenable number.

1242052345 is a deficient number, since it is larger than the sum of its proper divisors (269403335).

1242052345 is an equidigital number, since it uses as much as digits as its factorization.

1242052345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498815.

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

The square root of 1242052345 is about 35242.7630159725. The cubic root of 1242052345 is about 1074.9294621104.

Adding to 1242052345 its reverse (5432502421), we get a palindrome (6674554766).

The spelling of 1242052345 in words is "one billion, two hundred forty-two million, fifty-two thousand, three hundred forty-five".