1617030061 has 4 divisors (see below), whose sum is σ = 1633700572. Its totient is φ = 1600359552.

The previous prime is 1617030049. The next prime is 1617030097. The reversal of 1617030061 is 1600307161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1600307161 = 22391 ⋅71471.

It can be written as a sum of positive squares in 2 ways, for example, as 1218428836 + 398601225 = 34906^2 + 19965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1617030061 - 2¹³ = 1617021869 is a prime.

It is a super-2 number, since 2×1617030061² = 5229572436355327442, 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 (1617030001) 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, 8335110 + ... + 8335303.

It is an arithmetic number, because the mean of its divisors is an integer number (408425143).

Almost surely, 2^1617030061 is an apocalyptic number.

It is an amenable number.

1617030061 is a deficient number, since it is larger than the sum of its proper divisors (16670511).

1617030061 is an equidigital number, since it uses as much as digits as its factorization.

1617030061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16670510.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1617030061 is about 40212.3123060587. The cubic root of 1617030061 is about 1173.7421423182.

The spelling of 1617030061 in words is "one billion, six hundred seventeen million, thirty thousand, sixty-one".