261200653 has 8 divisors (see below), whose sum is σ = 298977408. Its totient is φ = 223539504.

The previous prime is 261200647. The next prime is 261200659. The reversal of 261200653 is 356002162.

It is an interprime number because it is at equal distance from previous prime (261200647) and next prime (261200659).

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 261200653 - 2¹³ = 261192461 is a prime.

It is a super-2 number, since 2×261200653² = 136451562255252818, 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 (261200659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24001 + ... + 33142.

It is an arithmetic number, because the mean of its divisors is an integer number (37372176).

Almost surely, 2^261200653 is an apocalyptic number.

It is an amenable number.

261200653 is a deficient number, since it is larger than the sum of its proper divisors (37776755).

261200653 is an equidigital number, since it uses as much as digits as its factorization.

261200653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57803.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 261200653 is about 16161.7032827608. The cubic root of 261200653 is about 639.2313795259.

It can be divided in two parts, 261200 and 653, that multiplied together give a square (170563600 = 13060²).

The spelling of 261200653 in words is "two hundred sixty-one million, two hundred thousand, six hundred fifty-three".