1401603 has 16 divisors (see below), whose sum is σ = 2205696. Its totient is φ = 774720.

The previous prime is 1401601. The next prime is 1401607. The reversal of 1401603 is 3061041.

It is not a de Polignac number, because 1401603 - 2¹ = 1401601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (137856).

2^1401603 is an apocalyptic number.

1401603 is a deficient number, since it is larger than the sum of its proper divisors (804093).

1401603 is a wasteful number, since it uses less digits than its factorization.

1401603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1401603 is about 1183.8931539628. The cubic root of 1401603 is about 111.9115745506.

Adding to 1401603 its reverse (3061041), we get a palindrome (4462644).

The spelling of 1401603 in words is "one million, four hundred one thousand, six hundred three".