70225145 has 4 divisors (see below), whose sum is σ = 84270180. Its totient is φ = 56180112.

The previous prime is 70225123. The next prime is 70225171. The reversal of 70225145 is 54152207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31933801 + 38291344 = 5651^2 + 6188^2 .

It is a cyclic number.

It is not a de Polignac number, because 70225145 - 2⁶ = 70225081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7022510 + ... + 7022519.

It is an arithmetic number, because the mean of its divisors is an integer number (21067545).

Almost surely, 2^70225145 is an apocalyptic number.

It is an amenable number.

70225145 is a deficient number, since it is larger than the sum of its proper divisors (14045035).

70225145 is a wasteful number, since it uses less digits than its factorization.

70225145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045034.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 70225145 is about 8380.0444509561. The cubic root of 70225145 is about 412.5699079559.

It can be divided in two parts, 7022 and 5145, that added together give a cube (12167 = 23³).

The spelling of 70225145 in words is "seventy million, two hundred twenty-five thousand, one hundred forty-five".