1225533 has 8 divisors (see below), whose sum is σ = 1639168. Its totient is φ = 814464.

The previous prime is 1225529. The next prime is 1225541. The reversal of 1225533 is 3355221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225533 - 2² = 1225529 is a prime.

It is a super-2 number, since 2×1225533² = 3003862268178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485 + ... + 2157.

It is an arithmetic number, because the mean of its divisors is an integer number (204896).

2^1225533 is an apocalyptic number.

It is an amenable number.

1225533 is a deficient number, since it is larger than the sum of its proper divisors (413635).

1225533 is an equidigital number, since it uses as much as digits as its factorization.

1225533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its digits is 900, while the sum is 21.

The square root of 1225533 is about 1107.0379397293. The cubic root of 1225533 is about 107.0142642642.

The spelling of 1225533 in words is "one million, two hundred twenty-five thousand, five hundred thirty-three".