70166137 has 2 divisors, whose sum is σ = 70166138. Its totient is φ = 70166136.

The previous prime is 70166099. The next prime is 70166143. The reversal of 70166137 is 73166107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36711481 + 33454656 = 6059^2 + 5784^2 .

It is a cyclic number.

It is not a de Polignac number, because 70166137 - 2⁷ = 70166009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70166099 and 70166108.

It is not a weakly prime, because it can be changed into another prime (70166197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35083068 + 35083069.

It is an arithmetic number, because the mean of its divisors is an integer number (35083069).

Almost surely, 2^70166137 is an apocalyptic number.

It is an amenable number.

70166137 is a deficient number, since it is larger than the sum of its proper divisors (1).

70166137 is an equidigital number, since it uses as much as digits as its factorization.

70166137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70166137 is about 8376.5229660045. The cubic root of 70166137 is about 412.4543190308.

The spelling of 70166137 in words is "seventy million, one hundred sixty-six thousand, one hundred thirty-seven".