1321354134 has 20 divisors (see below), whose sum is σ = 2960812404. Its totient is φ = 440451324.

The previous prime is 1321354129. The next prime is 1321354157. The reversal of 1321354134 is 4314531231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1321354098 and 1321354107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4078092 + ... + 4078415.

Almost surely, 2^1321354134 is an apocalyptic number.

1321354134 is an abundant number, since it is smaller than the sum of its proper divisors (1639458270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321354134 is an equidigital number, since it uses as much as digits as its factorization.

1321354134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156521 (or 8156512 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1321354134 is about 36350.4351280697. The cubic root of 1321354134 is about 1097.3362915341.

Adding to 1321354134 its reverse (4314531231), we get a palindrome (5635885365).

The spelling of 1321354134 in words is "one billion, three hundred twenty-one million, three hundred fifty-four thousand, one hundred thirty-four".