70993151 has 2 divisors, whose sum is σ = 70993152. Its totient is φ = 70993150.

The previous prime is 70993141. The next prime is 70993163. The reversal of 70993151 is 15139907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70993151 - 2²² = 66798847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70993141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35496575 + 35496576.

It is an arithmetic number, because the mean of its divisors is an integer number (35496576).

Almost surely, 2^70993151 is an apocalyptic number.

70993151 is a deficient number, since it is larger than the sum of its proper divisors (1).

70993151 is an equidigital number, since it uses as much as digits as its factorization.

70993151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 70993151 is about 8425.7433499959. The cubic root of 70993151 is about 414.0684597438.

The spelling of 70993151 in words is "seventy million, nine hundred ninety-three thousand, one hundred fifty-one".