70120151 has 2 divisors, whose sum is σ = 70120152. Its totient is φ = 70120150.

The previous prime is 70120147. The next prime is 70120157. The reversal of 70120151 is 15102107.

It is a weak prime.

It is an emirp because it is prime and its reverse (15102107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70120151 - 2² = 70120147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70120157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060075 + 35060076.

It is an arithmetic number, because the mean of its divisors is an integer number (35060076).

Almost surely, 2^70120151 is an apocalyptic number.

70120151 is a deficient number, since it is larger than the sum of its proper divisors (1).

70120151 is an equidigital number, since it uses as much as digits as its factorization.

70120151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 70120151 is about 8373.7775824296. Note that the first 3 decimals coincide. The cubic root of 70120151 is about 412.3641935551.

Adding to 70120151 its reverse (15102107), we get a palindrome (85222258).

The spelling of 70120151 in words is "seventy million, one hundred twenty thousand, one hundred fifty-one".