1225150 has 24 divisors (see below), whose sum is σ = 2310120. Its totient is φ = 483360.

The previous prime is 1225129. The next prime is 1225153. The reversal of 1225150 is 515221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5236 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (96255).

2^1225150 is an apocalyptic number.

1225150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225150 is a deficient number, since it is larger than the sum of its proper divisors (1084970).

1225150 is a wasteful number, since it uses less digits than its factorization.

1225150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1225150 is about 1106.8649420774. The cubic root of 1225150 is about 107.0031151741.

The spelling of 1225150 in words is "one million, two hundred twenty-five thousand, one hundred fifty".