70407145 has 4 divisors (see below), whose sum is σ = 84488580. Its totient is φ = 56325712.

The previous prime is 70407131. The next prime is 70407167. The reversal of 70407145 is 54170407.

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 33489369 + 36917776 = 5787^2 + 6076^2 .

It is a cyclic number.

It is not a de Polignac number, because 70407145 - 2¹³ = 70398953 is a prime.

It is an unprimeable number.

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, 7040710 + ... + 7040719.

It is an arithmetic number, because the mean of its divisors is an integer number (21122145).

Almost surely, 2^70407145 is an apocalyptic number.

It is an amenable number.

70407145 is a deficient number, since it is larger than the sum of its proper divisors (14081435).

70407145 is a wasteful number, since it uses less digits than its factorization.

70407145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14081434.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 70407145 is about 8390.8965551960. The cubic root of 70407145 is about 412.9260147278.

The spelling of 70407145 in words is "seventy million, four hundred seven thousand, one hundred forty-five".