238537099 has 2 divisors, whose sum is σ = 238537100. Its totient is φ = 238537098.

The previous prime is 238537069. The next prime is 238537109. The reversal of 238537099 is 990735832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238537099 - 2¹¹ = 238535051 is a prime.

It is not a weakly prime, because it can be changed into another prime (238537009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119268549 + 119268550.

It is an arithmetic number, because the mean of its divisors is an integer number (119268550).

Almost surely, 2^238537099 is an apocalyptic number.

238537099 is a deficient number, since it is larger than the sum of its proper divisors (1).

238537099 is an equidigital number, since it uses as much as digits as its factorization.

238537099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 238537099 is about 15444.6462892486. The cubic root of 238537099 is about 620.1812676710.

The spelling of 238537099 in words is "two hundred thirty-eight million, five hundred thirty-seven thousand, ninety-nine".