70145842 has 32 divisors (see below), whose sum is σ = 120887424. Its totient is φ = 30240000.

The previous prime is 70145833. The next prime is 70145849. The reversal of 70145842 is 24854107.

It is not an unprimeable number, because it can be changed into a prime (70145849) 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, 66217 + ... + 67267.

It is an arithmetic number, because the mean of its divisors is an integer number (3777732).

Almost surely, 2^70145842 is an apocalyptic number.

70145842 is a deficient number, since it is larger than the sum of its proper divisors (50741582).

70145842 is a wasteful number, since it uses less digits than its factorization.

70145842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 70145842 is about 8375.3114568952. The cubic root of 70145842 is about 412.4145488133.

Adding to 70145842 its reverse (24854107), we get a palindrome (94999949).

The spelling of 70145842 in words is "seventy million, one hundred forty-five thousand, eight hundred forty-two".