70170561 has 12 divisors (see below), whose sum is σ = 101966592. Its totient is φ = 46499256.

The previous prime is 70170559. The next prime is 70170587. The reversal of 70170561 is 16507107.

It is not a de Polignac number, because 70170561 - 2¹ = 70170559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70170511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21841 + ... + 24846.

It is an arithmetic number, because the mean of its divisors is an integer number (8497216).

Almost surely, 2^70170561 is an apocalyptic number.

It is an amenable number.

70170561 is a deficient number, since it is larger than the sum of its proper divisors (31796031).

70170561 is a wasteful number, since it uses less digits than its factorization.

70170561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46860 (or 46857 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 70170561 is about 8376.7870332246. The cubic root of 70170561 is about 412.4629873126.

Adding to 70170561 its reverse (16507107), we get a palindrome (86677668).

The spelling of 70170561 in words is "seventy million, one hundred seventy thousand, five hundred sixty-one".