1351918 has 4 divisors (see below), whose sum is σ = 2027880. Its totient is φ = 675958.

The previous prime is 1351913. The next prime is 1351919. The reversal of 1351918 is 8191531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8191531 = 2657 ⋅3083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337978 + ... + 337981.

It is an arithmetic number, because the mean of its divisors is an integer number (506970).

2^1351918 is an apocalyptic number.

1351918 is the 622-nd centered heptagonal number.

1351918 is a deficient number, since it is larger than the sum of its proper divisors (675962).

1351918 is an equidigital number, since it uses as much as digits as its factorization.

1351918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675961.

The product of its digits is 1080, while the sum is 28.

The square root of 1351918 is about 1162.7200866933. The cubic root of 1351918 is about 110.5732607277.

It can be divided in two parts, 13519 and 18, that multiplied together give a palindrome (243342).

The spelling of 1351918 in words is "one million, three hundred fifty-one thousand, nine hundred eighteen".