2601354021 has 16 divisors (see below), whose sum is σ = 3967248384. Its totient is φ = 1485257904.

The previous prime is 2601353999. The next prime is 2601354023. The reversal of 2601354021 is 1204531062.

It is not a de Polignac number, because 2601354021 - 2¹⁰ = 2601352997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2601353982 and 2601354000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601354023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24961 + ... + 76326.

It is an arithmetic number, because the mean of its divisors is an integer number (247953024).

Almost surely, 2^2601354021 is an apocalyptic number.

2601354021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2601354021 is a deficient number, since it is larger than the sum of its proper divisors (1365894363).

2601354021 is a wasteful number, since it uses less digits than its factorization.

2601354021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102520.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2601354021 is about 51003.4706760236. The cubic root of 2601354021 is about 1375.3075272035.

Adding to 2601354021 its reverse (1204531062), we get a palindrome (3805885083).

The spelling of 2601354021 in words is "two billion, six hundred one million, three hundred fifty-four thousand, twenty-one".