234194137 has 2 divisors, whose sum is σ = 234194138. Its totient is φ = 234194136.

The previous prime is 234194101. The next prime is 234194161. The reversal of 234194137 is 731491432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233814681 + 379456 = 15291^2 + 616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234194137 is a prime.

It is not a weakly prime, because it can be changed into another prime (234194167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117097068 + 117097069.

It is an arithmetic number, because the mean of its divisors is an integer number (117097069).

Almost surely, 2^234194137 is an apocalyptic number.

It is an amenable number.

234194137 is a deficient number, since it is larger than the sum of its proper divisors (1).

234194137 is an equidigital number, since it uses as much as digits as its factorization.

234194137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 234194137 is about 15303.4027915363. The cubic root of 234194137 is about 616.3943834541.

It can be divided in two parts, 23419 and 4137, that added together give a square (27556 = 166²).

The spelling of 234194137 in words is "two hundred thirty-four million, one hundred ninety-four thousand, one hundred thirty-seven".