70509146 has 8 divisors (see below), whose sum is σ = 106023540. Its totient is φ = 35167968.

The previous prime is 70509143. The next prime is 70509169. The reversal of 70509146 is 64190507.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69538921 + 970225 = 8339^2 + 985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (70509143) 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, 42281 + ... + 43916.

Almost surely, 2^70509146 is an apocalyptic number.

70509146 is a deficient number, since it is larger than the sum of its proper divisors (35514394).

70509146 is a wasteful number, since it uses less digits than its factorization.

70509146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86608.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 70509146 is about 8396.9724305847. The cubic root of 70509146 is about 413.1253247228.

The spelling of 70509146 in words is "seventy million, five hundred nine thousand, one hundred forty-six".