1342701781 has 4 divisors (see below), whose sum is σ = 1371269952. Its totient is φ = 1314133612.

The previous prime is 1342701779. The next prime is 1342701851. The reversal of 1342701781 is 1871072431.

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 1342701781 - 2¹ = 1342701779 is a prime.

It is a super-2 number, since 2×1342701781² = 3605696145401143922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342701721) 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, 14284015 + ... + 14284108.

It is an arithmetic number, because the mean of its divisors is an integer number (342817488).

Almost surely, 2^1342701781 is an apocalyptic number.

It is an amenable number.

1342701781 is a deficient number, since it is larger than the sum of its proper divisors (28568171).

1342701781 is an equidigital number, since it uses as much as digits as its factorization.

1342701781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28568170.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1342701781 is about 36642.8953686796. The cubic root of 1342701781 is about 1103.2142299143.

The spelling of 1342701781 in words is "one billion, three hundred forty-two million, seven hundred one thousand, seven hundred eighty-one".