1403161 has 4 divisors (see below), whose sum is σ = 1464192. Its totient is φ = 1342132.

The previous prime is 1403159. The next prime is 1403167. The reversal of 1403161 is 1613041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1403161 - 2¹ = 1403159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30481 + ... + 30526.

It is an arithmetic number, because the mean of its divisors is an integer number (366048).

2^1403161 is an apocalyptic number.

It is an amenable number.

1403161 is a deficient number, since it is larger than the sum of its proper divisors (61031).

1403161 is an equidigital number, since it uses as much as digits as its factorization.

1403161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61030.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1403161 is about 1184.5509697772. The cubic root of 1403161 is about 111.9530255816.

The spelling of 1403161 in words is "one million, four hundred three thousand, one hundred sixty-one".