70006121 has 2 divisors, whose sum is σ = 70006122. Its totient is φ = 70006120.

The previous prime is 70006103. The next prime is 70006151. The reversal of 70006121 is 12160007.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 21160000 = 6989^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 70006121 - 2¹⁴ = 69989737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70006121.

It is not a weakly prime, because it can be changed into another prime (70006151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003060 + 35003061.

It is an arithmetic number, because the mean of its divisors is an integer number (35003061).

Almost surely, 2^70006121 is an apocalyptic number.

It is an amenable number.

70006121 is a deficient number, since it is larger than the sum of its proper divisors (1).

70006121 is an equidigital number, since it uses as much as digits as its factorization.

70006121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 70006121 is about 8366.9660570603. The cubic root of 70006121 is about 412.1405421961.

Adding to 70006121 its reverse (12160007), we get a palindrome (82166128).

The spelling of 70006121 in words is "seventy million, six thousand, one hundred twenty-one".