1600326461 has 4 divisors (see below), whose sum is σ = 1606275900. Its totient is φ = 1594377024.

The previous prime is 1600326451. The next prime is 1600326491. The reversal of 1600326461 is 1646230061.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 172922500 + 1427403961 = 13150^2 + 37781^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600326461 - 2⁶ = 1600326397 is a prime.

It is a super-2 number, since 2×1600326461² = 5122089563553569042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600326421) 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, 2974316 + ... + 2974853.

It is an arithmetic number, because the mean of its divisors is an integer number (401568975).

Almost surely, 2^1600326461 is an apocalyptic number.

It is an amenable number.

1600326461 is a deficient number, since it is larger than the sum of its proper divisors (5949439).

1600326461 is an equidigital number, since it uses as much as digits as its factorization.

1600326461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949438.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1600326461 is about 40004.0805543635. The cubic root of 1600326461 is about 1169.6866380217.

The spelling of 1600326461 in words is "one billion, six hundred million, three hundred twenty-six thousand, four hundred sixty-one".