70581101 has 2 divisors, whose sum is σ = 70581102. Its totient is φ = 70581100.

The previous prime is 70581053. The next prime is 70581113. The reversal of 70581101 is 10118507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43903876 + 26677225 = 6626^2 + 5165^2 .

It is a cyclic number.

It is not a de Polignac number, because 70581101 - 2¹⁸ = 70318957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70581191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35290550 + 35290551.

It is an arithmetic number, because the mean of its divisors is an integer number (35290551).

Almost surely, 2^70581101 is an apocalyptic number.

It is an amenable number.

70581101 is a deficient number, since it is larger than the sum of its proper divisors (1).

70581101 is an equidigital number, since it uses as much as digits as its factorization.

70581101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 70581101 is about 8401.2559180161. The cubic root of 70581101 is about 413.2658092233.

Adding to 70581101 its reverse (10118507), we get a palindrome (80699608).

The spelling of 70581101 in words is "seventy million, five hundred eighty-one thousand, one hundred one".