403607161 has 4 divisors (see below), whose sum is σ = 404247424. Its totient is φ = 402966900.

The previous prime is 403607147. The next prime is 403607173. The reversal of 403607161 is 161706304.

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 403607161 - 2⁷ = 403607033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403607131) 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, 319185 + ... + 320446.

It is an arithmetic number, because the mean of its divisors is an integer number (101061856).

Almost surely, 2^403607161 is an apocalyptic number.

It is an amenable number.

403607161 is a deficient number, since it is larger than the sum of its proper divisors (640263).

403607161 is an equidigital number, since it uses as much as digits as its factorization.

403607161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640262.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 403607161 is about 20089.9766301507. The cubic root of 403607161 is about 739.0144910099.

The spelling of 403607161 in words is "four hundred three million, six hundred seven thousand, one hundred sixty-one".