235212145161 has 32 divisors (see below), whose sum is σ = 378508032000. Its totient is φ = 127014184704.

The previous prime is 235212145121. The next prime is 235212145171. The reversal of 235212145161 is 161541212532.

It is not a de Polignac number, because 235212145161 - 2⁶ = 235212145097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (235212145121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2893536 + ... + 2973713.

It is an arithmetic number, because the mean of its divisors is an integer number (11828376000).

Almost surely, 2^235212145161 is an apocalyptic number.

235212145161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

235212145161 is a deficient number, since it is larger than the sum of its proper divisors (143295886839).

235212145161 is a wasteful number, since it uses less digits than its factorization.

235212145161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867365.

The product of its digits is 14400, while the sum is 33.

Adding to 235212145161 its reverse (161541212532), we get a palindrome (396753357693).

The spelling of 235212145161 in words is "two hundred thirty-five billion, two hundred twelve million, one hundred forty-five thousand, one hundred sixty-one".