261360453 has 8 divisors (see below), whose sum is σ = 350820000. Its totient is φ = 173070608.

The previous prime is 261360439. The next prime is 261360457. The reversal of 261360453 is 354063162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261360453 - 2¹² = 261356357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 261360453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261360457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291903 + ... + 292796.

It is an arithmetic number, because the mean of its divisors is an integer number (43852500).

Almost surely, 2^261360453 is an apocalyptic number.

It is an amenable number.

261360453 is a deficient number, since it is larger than the sum of its proper divisors (89459547).

261360453 is a wasteful number, since it uses less digits than its factorization.

261360453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584851.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 261360453 is about 16166.6463127020. The cubic root of 261360453 is about 639.3617114490.

The spelling of 261360453 in words is "two hundred sixty-one million, three hundred sixty thousand, four hundred fifty-three".