235144979 has 2 divisors, whose sum is σ = 235144980. Its totient is φ = 235144978.

The previous prime is 235144933. The next prime is 235144981. The reversal of 235144979 is 979441532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235144979 is a prime.

It is a super-2 number, since 2×235144979² = 110586322297820882, which contains 22 as substring.

Together with 235144981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235144909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117572489 + 117572490.

It is an arithmetic number, because the mean of its divisors is an integer number (117572490).

Almost surely, 2^235144979 is an apocalyptic number.

235144979 is a deficient number, since it is larger than the sum of its proper divisors (1).

235144979 is an equidigital number, since it uses as much as digits as its factorization.

235144979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 235144979 is about 15334.4376812454. The cubic root of 235144979 is about 617.2274562038.

The spelling of 235144979 in words is "two hundred thirty-five million, one hundred forty-four thousand, nine hundred seventy-nine".