20115070 has 8 divisors (see below), whose sum is σ = 36207144. Its totient is φ = 8046024.

The previous prime is 20115061. The next prime is 20115083. The reversal of 20115070 is 7051102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20115070² = 809232082209800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005744 + ... + 1005763.

It is an arithmetic number, because the mean of its divisors is an integer number (4525893).

Almost surely, 2^20115070 is an apocalyptic number.

20115070 is a deficient number, since it is larger than the sum of its proper divisors (16092074).

20115070 is a wasteful number, since it uses less digits than its factorization.

20115070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011514.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 20115070 is about 4484.9827201451. The cubic root of 20115070 is about 271.9613465113.

Adding to 20115070 its reverse (7051102), we get a palindrome (27166172).

The spelling of 20115070 in words is "twenty million, one hundred fifteen thousand, seventy".