70044157 has 8 divisors (see below), whose sum is σ = 71808120. Its totient is φ = 68302080.

The previous prime is 70044133. The next prime is 70044173. The reversal of 70044157 is 75144007.

It can be written as a sum of positive squares in 4 ways, for example, as 1585081 + 68459076 = 1259^2 + 8274^2 .

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 70044157 - 2¹¹ = 70042109 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 (70044257) 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, 1107 + ... + 11887.

It is an arithmetic number, because the mean of its divisors is an integer number (8976015).

Almost surely, 2^70044157 is an apocalyptic number.

It is an amenable number.

70044157 is a deficient number, since it is larger than the sum of its proper divisors (1763963).

70044157 is a wasteful number, since it uses less digits than its factorization.

70044157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943.

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

The square root of 70044157 is about 8369.2387347954. The cubic root of 70044157 is about 412.2151706201.

The spelling of 70044157 in words is "seventy million, forty-four thousand, one hundred fifty-seven".