70734145 has 8 divisors (see below), whose sum is σ = 84928680. Its totient is φ = 56555520.

The previous prime is 70734101. The next prime is 70734149. The reversal of 70734145 is 54143707.

It can be written as a sum of positive squares in 4 ways, for example, as 1628176 + 69105969 = 1276^2 + 8313^2 .

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

It is not a de Polignac number, because 70734145 - 2¹³ = 70725953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70734149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10815 + ... + 16075.

It is an arithmetic number, because the mean of its divisors is an integer number (10616085).

Almost surely, 2^70734145 is an apocalyptic number.

It is an amenable number.

70734145 is a deficient number, since it is larger than the sum of its proper divisors (14194535).

70734145 is a wasteful number, since it uses less digits than its factorization.

70734145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 70734145 is about 8410.3593859002. The cubic root of 70734145 is about 413.5642941920.

The spelling of 70734145 in words is "seventy million, seven hundred thirty-four thousand, one hundred forty-five".