1406501225 has 12 divisors (see below), whose sum is σ = 1753702860. Its totient is φ = 1118980800.

The previous prime is 1406501191. The next prime is 1406501287. The reversal of 1406501225 is 5221056041.

It can be written as a sum of positive squares in 6 ways, for example, as 218182441 + 1188318784 = 14771^2 + 34472^2 .

It is not a de Polignac number, because 1406501225 - 2²⁶ = 1339392361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1406501194 and 1406501203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150890 + ... + 159939.

It is an arithmetic number, because the mean of its divisors is an integer number (146141905).

Almost surely, 2^1406501225 is an apocalyptic number.

It is an amenable number.

1406501225 is a deficient number, since it is larger than the sum of its proper divisors (347201635).

1406501225 is a wasteful number, since it uses less digits than its factorization.

1406501225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311020 (or 311015 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1406501225 is about 37503.3495170765. The cubic root of 1406501225 is about 1120.4178991650.

Adding to 1406501225 its reverse (5221056041), we get a palindrome (6627557266).

The spelling of 1406501225 in words is "one billion, four hundred six million, five hundred one thousand, two hundred twenty-five".