261146301 has 32 divisors (see below), whose sum is σ = 392878080. Its totient is φ = 153092544.

The previous prime is 261146297. The next prime is 261146309. The reversal of 261146301 is 103641162.

It is not a de Polignac number, because 261146301 - 2² = 261146297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261146309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310840 + ... + 311678.

It is an arithmetic number, because the mean of its divisors is an integer number (12277440).

Almost surely, 2^261146301 is an apocalyptic number.

It is an amenable number.

261146301 is a deficient number, since it is larger than the sum of its proper divisors (131731779).

261146301 is a wasteful number, since it uses less digits than its factorization.

261146301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 261146301 is about 16160.0216893419. The cubic root of 261146301 is about 639.1870382456.

Adding to 261146301 its reverse (103641162), we get a palindrome (364787463).

The spelling of 261146301 in words is "two hundred sixty-one million, one hundred forty-six thousand, three hundred one".