1313402 has 4 divisors (see below), whose sum is σ = 1970106. Its totient is φ = 656700.

The previous prime is 1313383. The next prime is 1313423. The reversal of 1313402 is 2043131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2043131 = 1319 ⋅1549.

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 83521 = 1109^2 + 289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328349 + ... + 328352.

2^1313402 is an apocalyptic number.

1313402 is a deficient number, since it is larger than the sum of its proper divisors (656704).

1313402 is an equidigital number, since it uses as much as digits as its factorization.

1313402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656703.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1313402 is about 1146.0375212008. The cubic root of 1313402 is about 109.5130541903.

Adding to 1313402 its reverse (2043131), we get a palindrome (3356533).

The spelling of 1313402 in words is "one million, three hundred thirteen thousand, four hundred two".