1501225 has 24 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 1060800.

The previous prime is 1501223. The next prime is 1501229. The reversal of 1501225 is 5221051.

It is not a de Polignac number, because 1501225 - 2¹ = 1501223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1501199 and 1501208.

It is not an unprimeable number, because it can be changed into a prime (1501223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14524 + ... + 14626.

It is an arithmetic number, because the mean of its divisors is an integer number (87048).

2^1501225 is an apocalyptic number.

It is an amenable number.

1501225 is a deficient number, since it is larger than the sum of its proper divisors (587927).

1501225 is a wasteful number, since it uses less digits than its factorization.

1501225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 172 counting only the distinct ones).

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

The square root of 1501225 is about 1225.2448734845. The cubic root of 1501225 is about 114.5025774418.

Adding to 1501225 its reverse (5221051), we get a palindrome (6722276).

The spelling of 1501225 in words is "one million, five hundred one thousand, two hundred twenty-five".