70605146 has 4 divisors (see below), whose sum is σ = 105907722. Its totient is φ = 35302572.

The previous prime is 70605137. The next prime is 70605149. The reversal of 70605146 is 64150607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64150607 = 79 ⋅812033.

It can be written as a sum of positive squares in only one way, i.e., 45495025 + 25110121 = 6745^2 + 5011^2 .

It is not an unprimeable number, because it can be changed into a prime (70605149) 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, 17651285 + ... + 17651288.

Almost surely, 2^70605146 is an apocalyptic number.

70605146 is a deficient number, since it is larger than the sum of its proper divisors (35302576).

70605146 is a wasteful number, since it uses less digits than its factorization.

70605146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35302575.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 70605146 is about 8402.6868321984. The cubic root of 70605146 is about 413.3127332490.

The spelling of 70605146 in words is "seventy million, six hundred five thousand, one hundred forty-six".