261292114 has 4 divisors (see below), whose sum is σ = 391938174. Its totient is φ = 130646056.

The previous prime is 261292111. The next prime is 261292127. The reversal of 261292114 is 411292162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162945225 + 98346889 = 12765^2 + 9917^2 .

It is not an unprimeable number, because it can be changed into a prime (261292111) 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 as a sum of consecutive naturals, namely, 65323027 + ... + 65323030.

Almost surely, 2^261292114 is an apocalyptic number.

261292114 is a deficient number, since it is larger than the sum of its proper divisors (130646060).

261292114 is a wasteful number, since it uses less digits than its factorization.

261292114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130646059.

The product of its digits is 1728, while the sum is 28.

The square root of 261292114 is about 16164.5325945417. The cubic root of 261292114 is about 639.3059810732.

The spelling of 261292114 in words is "two hundred sixty-one million, two hundred ninety-two thousand, one hundred fourteen".