1351723 has 4 divisors (see below), whose sum is σ = 1354968. Its totient is φ = 1348480.

The previous prime is 1351711. The next prime is 1351747. The reversal of 1351723 is 3271531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351694 and 1351703.

It is not an unprimeable number, because it can be changed into a prime (1351703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (338742).

2^1351723 is an apocalyptic number.

1351723 is a deficient number, since it is larger than the sum of its proper divisors (3245).

1351723 is an equidigital number, since it uses as much as digits as its factorization.

1351723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244.

The product of its digits is 630, while the sum is 22.

The square root of 1351723 is about 1162.6362285771. The cubic root of 1351723 is about 110.5679441275.

The spelling of 1351723 in words is "one million, three hundred fifty-one thousand, seven hundred twenty-three".