1342874749 has 4 divisors (see below), whose sum is σ = 1343057436. Its totient is φ = 1342692064.

The previous prime is 1342874747. The next prime is 1342874773. The reversal of 1342874749 is 9474782431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1170871524 + 172003225 = 34218^2 + 13115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342874749 - 2¹ = 1342874747 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 (1342874747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79834 + ... + 95179.

It is an arithmetic number, because the mean of its divisors is an integer number (335764359).

Almost surely, 2^1342874749 is an apocalyptic number.

It is an amenable number.

1342874749 is a deficient number, since it is larger than the sum of its proper divisors (182687).

1342874749 is an equidigital number, since it uses as much as digits as its factorization.

1342874749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182686.

The product of its digits is 1354752, while the sum is 49.

The square root of 1342874749 is about 36645.2554773466. The cubic root of 1342874749 is about 1103.2616002161.

The spelling of 1342874749 in words is "one billion, three hundred forty-two million, eight hundred seventy-four thousand, seven hundred forty-nine".