70251273 has 8 divisors (see below), whose sum is σ = 104076000. Its totient is φ = 46834164.

The previous prime is 70251221. The next prime is 70251281. The reversal of 70251273 is 37215207.

It is not a de Polignac number, because 70251273 - 2¹⁴ = 70234889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2601899 = 70251273 / (7 + 0 + 2 + 5 + 1 + 2 + 7 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70251773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300923 + ... + 1300976.

It is an arithmetic number, because the mean of its divisors is an integer number (13009500).

Almost surely, 2^70251273 is an apocalyptic number.

It is an amenable number.

70251273 is a deficient number, since it is larger than the sum of its proper divisors (33824727).

70251273 is a wasteful number, since it uses less digits than its factorization.

70251273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601908 (or 2601902 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 70251273 is about 8381.6032475893. The cubic root of 70251273 is about 412.6210685952.

The spelling of 70251273 in words is "seventy million, two hundred fifty-one thousand, two hundred seventy-three".