1401825 has 12 divisors (see below), whose sum is σ = 2317808. Its totient is φ = 747600.

The previous prime is 1401823. The next prime is 1401857. The reversal of 1401825 is 5281041.

It is not a de Polignac number, because 1401825 - 2¹ = 1401823 is a prime.

It is a super-2 number, since 2×1401825² = 3930226661250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1401821) 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 11 ways as a sum of consecutive naturals, for example, 9271 + ... + 9420.

2^1401825 is an apocalyptic number.

1401825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401825 is a deficient number, since it is larger than the sum of its proper divisors (915983).

1401825 is a wasteful number, since it uses less digits than its factorization.

1401825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704 (or 18699 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1401825 is about 1183.9869087114. The cubic root of 1401825 is about 111.9174827994.

Adding to 1401825 its reverse (5281041), we get a palindrome (6682866).

The spelling of 1401825 in words is "one million, four hundred one thousand, eight hundred twenty-five".