70753145 has 8 divisors (see below), whose sum is σ = 86506056. Its totient is φ = 55534336.

The previous prime is 70753117. The next prime is 70753157. The reversal of 70753145 is 54135707.

It can be written as a sum of positive squares in 4 ways, for example, as 11478544 + 59274601 = 3388^2 + 7699^2 .

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 70753145 - 2⁸ = 70752889 is a prime.

It is a Duffinian number.

It is a Curzon 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, 133232 + ... + 133761.

It is an arithmetic number, because the mean of its divisors is an integer number (10813257).

Almost surely, 2^70753145 is an apocalyptic number.

It is an amenable number.

70753145 is a deficient number, since it is larger than the sum of its proper divisors (15752911).

70753145 is a wasteful number, since it uses less digits than its factorization.

70753145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267051.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 70753145 is about 8411.4888693976. The cubic root of 70753145 is about 413.6013202428.

The spelling of 70753145 in words is "seventy million, seven hundred fifty-three thousand, one hundred forty-five".