1601715946 has 4 divisors (see below), whose sum is σ = 2402573922. Its totient is φ = 800857972.

The previous prime is 1601715943. The next prime is 1601715959. The reversal of 1601715946 is 6495171061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6495171061 = 26339 ⋅246599.

It can be written as a sum of positive squares in only one way, i.e., 988410721 + 613305225 = 31439^2 + 24765^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1601715899 and 1601715908.

It is not an unprimeable number, because it can be changed into a prime (1601715943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400428985 + ... + 400428988.

Almost surely, 2^1601715946 is an apocalyptic number.

1601715946 is a deficient number, since it is larger than the sum of its proper divisors (800857976).

1601715946 is an equidigital number, since it uses as much as digits as its factorization.

1601715946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800857975.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1601715946 is about 40021.4435771625. The cubic root of 1601715946 is about 1170.0250672789.

The spelling of 1601715946 in words is "one billion, six hundred one million, seven hundred fifteen thousand, nine hundred forty-six".