158422207 has 2 divisors, whose sum is σ = 158422208. Its totient is φ = 158422206.

The previous prime is 158422177. The next prime is 158422211. The reversal of 158422207 is 702224851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158422207 - 2¹⁹ = 157897919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158422267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79211103 + 79211104.

It is an arithmetic number, because the mean of its divisors is an integer number (79211104).

Almost surely, 2^158422207 is an apocalyptic number.

158422207 is a deficient number, since it is larger than the sum of its proper divisors (1).

158422207 is an equidigital number, since it uses as much as digits as its factorization.

158422207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 158422207 is about 12586.5883781110. The cubic root of 158422207 is about 541.0931297473.

The spelling of 158422207 in words is "one hundred fifty-eight million, four hundred twenty-two thousand, two hundred seven".