1225372 has 12 divisors (see below), whose sum is σ = 2164176. Its totient is φ = 607040.

The previous prime is 1225361. The next prime is 1225373. The reversal of 1225372 is 2735221.

It is a super-3 number, since 3×1225372³ = 5519822493338036544, which contains 333 as substring.

It is a d-powerful number, because it can be written as 1 + 2³ + 2⁶ + 5² + 3¹⁰ + 7⁶ + 2²⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225373) 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, 904 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (180348).

2^1225372 is an apocalyptic number.

1225372 is the 904-th pentagonal number.

It is an amenable number.

1225372 is a deficient number, since it is larger than the sum of its proper divisors (938804).

1225372 is a wasteful number, since it uses less digits than its factorization.

1225372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2826 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 1225372 is about 1106.9652207725. The cubic root of 1225372 is about 107.0095778540.

The spelling of 1225372 in words is "one million, two hundred twenty-five thousand, three hundred seventy-two".