234423153637 has 2 divisors, whose sum is σ = 234423153638. Its totient is φ = 234423153636.

The previous prime is 234423153611. The next prime is 234423153649. The reversal of 234423153637 is 736351324432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232324964001 + 2098189636 = 482001^2 + 45806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234423153637 is a prime.

It is a super-2 number, since 2×234423153637² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234423153593 and 234423153602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234423157637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117211576818 + 117211576819.

It is an arithmetic number, because the mean of its divisors is an integer number (117211576819).

Almost surely, 2^234423153637 is an apocalyptic number.

It is an amenable number.

234423153637 is a deficient number, since it is larger than the sum of its proper divisors (1).

234423153637 is an equidigital number, since it uses as much as digits as its factorization.

234423153637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 43.

The spelling of 234423153637 in words is "two hundred thirty-four billion, four hundred twenty-three million, one hundred fifty-three thousand, six hundred thirty-seven".