261236462 has 4 divisors (see below), whose sum is σ = 391854696. Its totient is φ = 130618230.

The previous prime is 261236429. The next prime is 261236471. The reversal of 261236462 is 264632162.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65309114 + ... + 65309117.

It is an arithmetic number, because the mean of its divisors is an integer number (97963674).

Almost surely, 2^261236462 is an apocalyptic number.

261236462 is a deficient number, since it is larger than the sum of its proper divisors (130618234).

261236462 is a wasteful number, since it uses less digits than its factorization.

261236462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130618233.

The product of its digits is 20736, while the sum is 32.

The square root of 261236462 is about 16162.8110797596. The cubic root of 261236462 is about 639.2605897521.

The spelling of 261236462 in words is "two hundred sixty-one million, two hundred thirty-six thousand, four hundred sixty-two".