261073122 has 16 divisors (see below), whose sum is σ = 522490080. Its totient is φ = 86967072.

The previous prime is 261073121. The next prime is 261073123. The reversal of 261073122 is 221370162.

It is an interprime number because it is at equal distance from previous prime (261073121) and next prime (261073123).

It is a junction number, because it is equal to n+sod(n) for n = 261073092 and 261073101.

It is not an unprimeable number, because it can be changed into a prime (261073121) 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, 3868 + ... + 23175.

It is an arithmetic number, because the mean of its divisors is an integer number (32655630).

Almost surely, 2^261073122 is an apocalyptic number.

261073122 is an abundant number, since it is smaller than the sum of its proper divisors (261416958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261073122 is a wasteful number, since it uses less digits than its factorization.

261073122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28657.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 261073122 is about 16157.7573320062. The cubic root of 261073122 is about 639.1273278612.

The spelling of 261073122 in words is "two hundred sixty-one million, seventy-three thousand, one hundred twenty-two".