1353431746 has 4 divisors (see below), whose sum is σ = 2030147622. Its totient is φ = 676715872.

The previous prime is 1353431743. The next prime is 1353431747. The reversal of 1353431746 is 6471343531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6471343531 = 10627 ⋅608953.

It can be written as a sum of positive squares in only one way, i.e., 1353430521 + 1225 = 36789^2 + 35^2 .

It is not an unprimeable number, because it can be changed into a prime (1353431743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338357935 + ... + 338357938.

Almost surely, 2^1353431746 is an apocalyptic number.

1353431746 is a deficient number, since it is larger than the sum of its proper divisors (676715876).

1353431746 is an equidigital number, since it uses as much as digits as its factorization.

1353431746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676715875.

The product of its digits is 90720, while the sum is 37.

The square root of 1353431746 is about 36789.0166489946. The cubic root of 1353431746 is about 1106.1451505382.

The spelling of 1353431746 in words is "one billion, three hundred fifty-three million, four hundred thirty-one thousand, seven hundred forty-six".