161474603 has 4 divisors (see below), whose sum is σ = 161519688. Its totient is φ = 161429520.

The previous prime is 161474501. The next prime is 161474633. The reversal of 161474603 is 306474161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161474603 - 2¹⁰ = 161473579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161474603.

It is not an unprimeable number, because it can be changed into a prime (161474633) 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, 16658 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (40379922).

Almost surely, 2^161474603 is an apocalyptic number.

161474603 is a deficient number, since it is larger than the sum of its proper divisors (45085).

161474603 is an equidigital number, since it uses as much as digits as its factorization.

161474603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45084.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 161474603 is about 12707.2657562514. The cubic root of 161474603 is about 544.5462126189.

The spelling of 161474603 in words is "one hundred sixty-one million, four hundred seventy-four thousand, six hundred three".