361054261 has 4 divisors (see below), whose sum is σ = 361399500. Its totient is φ = 360709024.

The previous prime is 361054249. The next prime is 361054271. The reversal of 361054261 is 162450163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162450163 = 233 ⋅697211.

It can be written as a sum of positive squares in 2 ways, for example, as 298944100 + 62110161 = 17290^2 + 7881^2 .

It is a cyclic number.

It is not a de Polignac number, because 361054261 - 2⁵ = 361054229 is a prime.

It is a super-2 number, since 2×361054261² = 260720358772512242, 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 (361054201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171046 + ... + 173143.

It is an arithmetic number, because the mean of its divisors is an integer number (90349875).

Almost surely, 2^361054261 is an apocalyptic number.

It is an amenable number.

361054261 is a deficient number, since it is larger than the sum of its proper divisors (345239).

361054261 is a wasteful number, since it uses less digits than its factorization.

361054261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345238.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 361054261 is about 19001.4278673999. The cubic root of 361054261 is about 712.0724089186.

The spelling of 361054261 in words is "three hundred sixty-one million, fifty-four thousand, two hundred sixty-one".