70154789 has 2 divisors, whose sum is σ = 70154790. Its totient is φ = 70154788.

The previous prime is 70154779. The next prime is 70154797. The reversal of 70154789 is 98745107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38962564 + 31192225 = 6242^2 + 5585^2 .

It is an emirp because it is prime and its reverse (98745107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70154789 - 2¹² = 70150693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70154729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35077394 + 35077395.

It is an arithmetic number, because the mean of its divisors is an integer number (35077395).

Almost surely, 2^70154789 is an apocalyptic number.

It is an amenable number.

70154789 is a deficient number, since it is larger than the sum of its proper divisors (1).

70154789 is an equidigital number, since it uses as much as digits as its factorization.

70154789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 70154789 is about 8375.8455692545. The cubic root of 70154789 is about 412.4320823595.

The spelling of 70154789 in words is "seventy million, one hundred fifty-four thousand, seven hundred eighty-nine".