70145834 has 32 divisors (see below), whose sum is σ = 123802560. Its totient is φ = 29462400.

The previous prime is 70145833. The next prime is 70145849. The reversal of 70145834 is 43854107.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70145834.

It is not an unprimeable number, because it can be changed into a prime (70145833) 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 15 ways as a sum of consecutive naturals, for example, 15092 + ... + 19184.

It is an arithmetic number, because the mean of its divisors is an integer number (3868830).

Almost surely, 2^70145834 is an apocalyptic number.

70145834 is a deficient number, since it is larger than the sum of its proper divisors (53656726).

70145834 is a wasteful number, since it uses less digits than its factorization.

70145834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 70145834 is about 8375.3109793010. The cubic root of 70145834 is about 412.4145331349.

The spelling of 70145834 in words is "seventy million, one hundred forty-five thousand, eight hundred thirty-four".