70142899 has 2 divisors, whose sum is σ = 70142900. Its totient is φ = 70142898.

The previous prime is 70142881. The next prime is 70142921. The reversal of 70142899 is 99824107.

It is a weak prime.

It is an emirp because it is prime and its reverse (99824107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70142899 - 2²³ = 61754291 is a prime.

It is not a weakly prime, because it can be changed into another prime (70142819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35071449 + 35071450.

It is an arithmetic number, because the mean of its divisors is an integer number (35071450).

Almost surely, 2^70142899 is an apocalyptic number.

70142899 is a deficient number, since it is larger than the sum of its proper divisors (1).

70142899 is an equidigital number, since it uses as much as digits as its factorization.

70142899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 70142899 is about 8375.1357600937. The cubic root of 70142899 is about 412.4087810540.

The spelling of 70142899 in words is "seventy million, one hundred forty-two thousand, eight hundred ninety-nine".