70475149 has 16 divisors (see below), whose sum is σ = 76483440. Its totient is φ = 64696320.

The previous prime is 70475143. The next prime is 70475177. The reversal of 70475149 is 94157407.

It can be written as a sum of positive squares in 8 ways, for example, as 2082249 + 68392900 = 1443^2 + 8270^2 .

It is a cyclic number.

It is not a de Polignac number, because 70475149 - 2⁵ = 70475117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70475143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135009 + ... + 135529.

It is an arithmetic number, because the mean of its divisors is an integer number (4780215).

Almost surely, 2^70475149 is an apocalyptic number.

It is an amenable number.

70475149 is a deficient number, since it is larger than the sum of its proper divisors (6008291).

70475149 is a wasteful number, since it uses less digits than its factorization.

70475149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 70475149 is about 8394.9478259248. The cubic root of 70475149 is about 413.0589159404.

The spelling of 70475149 in words is "seventy million, four hundred seventy-five thousand, one hundred forty-nine".