1340905162 has 4 divisors (see below), whose sum is σ = 2011357746. Its totient is φ = 670452580.

The previous prime is 1340905151. The next prime is 1340905177. The reversal of 1340905162 is 2615090431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2615090431 = 6829 ⋅382939.

It can be written as a sum of positive squares in only one way, i.e., 1243902361 + 97002801 = 35269^2 + 9849^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335226289 + ... + 335226292.

Almost surely, 2^1340905162 is an apocalyptic number.

1340905162 is a deficient number, since it is larger than the sum of its proper divisors (670452584).

1340905162 is an equidigital number, since it uses as much as digits as its factorization.

1340905162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670452583.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1340905162 is about 36618.3719190245. The cubic root of 1340905162 is about 1102.7219537265.

Adding to 1340905162 its reverse (2615090431), we get a palindrome (3955995593).

The spelling of 1340905162 in words is "one billion, three hundred forty million, nine hundred five thousand, one hundred sixty-two".