1533722 has 4 divisors (see below), whose sum is σ = 2300586. Its totient is φ = 766860.

The previous prime is 1533713. The next prime is 1533731. The reversal of 1533722 is 2273351.

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

It is an interprime number because it is at equal distance from previous prime (1533713) and next prime (1533731).

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 259081 = 1129^2 + 509^2 .

It is a super-3 number, since 3×1533722³ = 10823337382606449144, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383429 + ... + 383432.

2^1533722 is an apocalyptic number.

1533722 is a deficient number, since it is larger than the sum of its proper divisors (766864).

1533722 is an equidigital number, since it uses as much as digits as its factorization.

1533722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766863.

The product of its digits is 1260, while the sum is 23.

The square root of 1533722 is about 1238.4353031144. The cubic root of 1533722 is about 115.3228984363.

The spelling of 1533722 in words is "one million, five hundred thirty-three thousand, seven hundred twenty-two".