651260541 has 4 divisors (see below), whose sum is σ = 868347392. Its totient is φ = 434173692.

The previous prime is 651260539. The next prime is 651260557. The reversal of 651260541 is 145062156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 651260541 - 2¹ = 651260539 is a prime.

It is a super-2 number, since 2×651260541² = 848280584527225362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 651260499 and 651260508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651260591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108543421 + ... + 108543426.

It is an arithmetic number, because the mean of its divisors is an integer number (217086848).

Almost surely, 2^651260541 is an apocalyptic number.

It is an amenable number.

651260541 is a deficient number, since it is larger than the sum of its proper divisors (217086851).

651260541 is a wasteful number, since it uses less digits than its factorization.

651260541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217086850.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 651260541 is about 25519.8068370433. The cubic root of 651260541 is about 866.7987078075.

The spelling of 651260541 in words is "six hundred fifty-one million, two hundred sixty thousand, five hundred forty-one".