601026517081 has 3 divisors (see below), whose sum is σ = 601027292341. Its totient is φ = 601025741822.

The previous prime is 601026517067. The next prime is 601026517087. The reversal of 601026517081 is 180715620106.

The square root of 601026517081 is 775259.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 601026517081 - 2¹⁹ = 601025992793 is a prime.

It is a super-2 number, since 2×601026517081² (a number of 24 digits) contains 22 as substring.

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 601026517081.

It is not an unprimeable number, because it can be changed into a prime (601026517087) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 387630 + ... + 1162888.

Almost surely, 2^601026517081 is an apocalyptic number.

601026517081 is the 775259-th square number.

601026517081 is the 387630-th centered octagonal number.

It is an amenable number.

601026517081 is a deficient number, since it is larger than the sum of its proper divisors (775260).

601026517081 is an frugal number, since it uses more digits than its factorization.

601026517081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550518 (or 775259 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 601026517081 in words is "six hundred one billion, twenty-six million, five hundred seventeen thousand, eighty-one".