70138099 has 2 divisors, whose sum is σ = 70138100. Its totient is φ = 70138098.

The previous prime is 70138097. The next prime is 70138111. The reversal of 70138099 is 99083107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70138099 - 2¹ = 70138097 is a prime.

Together with 70138097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70138091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35069049 + 35069050.

It is an arithmetic number, because the mean of its divisors is an integer number (35069050).

Almost surely, 2^70138099 is an apocalyptic number.

70138099 is a deficient number, since it is larger than the sum of its proper divisors (1).

70138099 is an equidigital number, since it uses as much as digits as its factorization.

70138099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 70138099 is about 8374.8491926721. The cubic root of 70138099 is about 412.3993735571.

The spelling of 70138099 in words is "seventy million, one hundred thirty-eight thousand, ninety-nine".