1242354413 has 4 divisors (see below), whose sum is σ = 1248597600. Its totient is φ = 1236111228.

The previous prime is 1242354371. The next prime is 1242354427. The reversal of 1242354413 is 3144532421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1242354413 - 2²² = 1238160109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242354493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121295 + ... + 3121692.

It is an arithmetic number, because the mean of its divisors is an integer number (312149400).

Almost surely, 2^1242354413 is an apocalyptic number.

It is an amenable number.

1242354413 is a deficient number, since it is larger than the sum of its proper divisors (6243187).

1242354413 is an equidigital number, since it uses as much as digits as its factorization.

1242354413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243186.

The product of its digits is 11520, while the sum is 29.

The square root of 1242354413 is about 35247.0482877645. The cubic root of 1242354413 is about 1075.0165962464.

Adding to 1242354413 its reverse (3144532421), we get a palindrome (4386886834).

The spelling of 1242354413 in words is "one billion, two hundred forty-two million, three hundred fifty-four thousand, four hundred thirteen".