1401525 has 18 divisors (see below), whose sum is σ = 2510690. Its totient is φ = 747360.

The previous prime is 1401511. The next prime is 1401529. The reversal of 1401525 is 5251041.

1401525 is a `hidden beast` number, since 140 + 1 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 88209 + 1313316 = 297^2 + 1146^2 .

It is not a de Polignac number, because 1401525 - 2⁶ = 1401461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401498 and 1401507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2890 + ... + 3339.

2^1401525 is an apocalyptic number.

1401525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401525 is a deficient number, since it is larger than the sum of its proper divisors (1109165).

1401525 is a wasteful number, since it uses less digits than its factorization.

1401525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245 (or 6237 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1401525 is about 1183.8602113425. The cubic root of 1401525 is about 111.9094985312.

Adding to 1401525 its reverse (5251041), we get a palindrome (6652566).

The spelling of 1401525 in words is "one million, four hundred one thousand, five hundred twenty-five".