670030145 has 8 divisors (see below), whose sum is σ = 804521256. Its totient is φ = 535700736.

The previous prime is 670030111. The next prime is 670030157. The reversal of 670030145 is 541030076.

It can be written as a sum of positive squares in 4 ways, for example, as 106584976 + 563445169 = 10324^2 + 23737^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 670030145 - 2¹⁴ = 670013761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31112 + ... + 48041.

It is an arithmetic number, because the mean of its divisors is an integer number (100565157).

Almost surely, 2^670030145 is an apocalyptic number.

It is an amenable number.

670030145 is a deficient number, since it is larger than the sum of its proper divisors (134491111).

670030145 is a wasteful number, since it uses less digits than its factorization.

670030145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80851.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 670030145 is about 25884.9405060162. The cubic root of 670030145 is about 875.0471354200.

The spelling of 670030145 in words is "six hundred seventy million, thirty thousand, one hundred forty-five".