261122467 has 8 divisors (see below), whose sum is σ = 275225040. Its totient is φ = 247359840.

The previous prime is 261122447. The next prime is 261122483. The reversal of 261122467 is 764221162.

261122467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261122467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261122447) 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, 83409 + ... + 86482.

It is an arithmetic number, because the mean of its divisors is an integer number (34403130).

Almost surely, 2^261122467 is an apocalyptic number.

261122467 is a deficient number, since it is larger than the sum of its proper divisors (14102573).

261122467 is a wasteful number, since it uses less digits than its factorization.

261122467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169973.

The product of its digits is 8064, while the sum is 31.

The square root of 261122467 is about 16159.2842353862. The cubic root of 261122467 is about 639.1675921251.

The spelling of 261122467 in words is "two hundred sixty-one million, one hundred twenty-two thousand, four hundred sixty-seven".