70430149 has 4 divisors (see below), whose sum is σ = 70469100. Its totient is φ = 70391200.

The previous prime is 70430147. The next prime is 70430153. The reversal of 70430149 is 94103407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7941124 + 62489025 = 2818^2 + 7905^2 .

It is a cyclic number.

It is not a de Polignac number, because 70430149 - 2¹ = 70430147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70430147) 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 in 3 ways as a sum of consecutive naturals, for example, 16624 + ... + 20425.

It is an arithmetic number, because the mean of its divisors is an integer number (17617275).

Almost surely, 2^70430149 is an apocalyptic number.

It is an amenable number.

70430149 is a deficient number, since it is larger than the sum of its proper divisors (38951).

70430149 is a wasteful number, since it uses less digits than its factorization.

70430149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38950.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70430149 is about 8392.2672145255. The cubic root of 70430149 is about 412.9709813559.

The spelling of 70430149 in words is "seventy million, four hundred thirty thousand, one hundred forty-nine".