235981236841 has 27 divisors (see below), whose sum is σ = 284419868421. Its totient is φ = 195213205824.

The previous prime is 235981236817. The next prime is 235981236877. The reversal of 235981236841 is 148632189532.

The square root of 235981236841 is 485779.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 78851448025 + 157129788816 = 280805^2 + 396396^2 .

It is not a de Polignac number, because 235981236841 - 2¹³ = 235981228649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235981236041) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 98611941 + ... + 98614333.

Almost surely, 2^235981236841 is an apocalyptic number.

235981236841 is the 485779-th square number.

235981236841 is the 242890-th centered octagonal number.

It is an amenable number.

235981236841 is a deficient number, since it is larger than the sum of its proper divisors (48438631580).

235981236841 is an frugal number, since it uses more digits than its factorization.

235981236841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858 (or 2429 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The spelling of 235981236841 in words is "two hundred thirty-five billion, nine hundred eighty-one million, two hundred thirty-six thousand, eight hundred forty-one".