1225370 has 16 divisors (see below), whose sum is σ = 2221128. Its totient is φ = 486720.

The previous prime is 1225361. The next prime is 1225373. The reversal of 1225370 is 735221.

It can be written as a sum of positive squares in 4 ways, for example, as 994009 + 231361 = 997^2 + 481^2 .

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 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 2148.

2^1225370 is an apocalyptic number.

1225370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225370 is a deficient number, since it is larger than the sum of its proper divisors (995758).

1225370 is a wasteful number, since it uses less digits than its factorization.

1225370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1225370 is about 1106.9643174014. The cubic root of 1225370 is about 107.0095196352.

The spelling of 1225370 in words is "one million, two hundred twenty-five thousand, three hundred seventy".