158211407 has 2 divisors, whose sum is σ = 158211408. Its totient is φ = 158211406.

The previous prime is 158211373. The next prime is 158211409. The reversal of 158211407 is 704112851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158211407 - 2²⁴ = 141434191 is a prime.

Together with 158211409, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158211407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158211409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79105703 + 79105704.

It is an arithmetic number, because the mean of its divisors is an integer number (79105704).

Almost surely, 2^158211407 is an apocalyptic number.

158211407 is a deficient number, since it is larger than the sum of its proper divisors (1).

158211407 is an equidigital number, since it uses as much as digits as its factorization.

158211407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 158211407 is about 12578.2115978385. The cubic root of 158211407 is about 540.8530264969.

The spelling of 158211407 in words is "one hundred fifty-eight million, two hundred eleven thousand, four hundred seven".