158919461 has 2 divisors, whose sum is σ = 158919462. Its totient is φ = 158919460.

The previous prime is 158919433. The next prime is 158919469. The reversal of 158919461 is 164919851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136773025 + 22146436 = 11695^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 158919461 - 2¹⁴ = 158903077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158919469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79459730 + 79459731.

It is an arithmetic number, because the mean of its divisors is an integer number (79459731).

Almost surely, 2^158919461 is an apocalyptic number.

It is an amenable number.

158919461 is a deficient number, since it is larger than the sum of its proper divisors (1).

158919461 is an equidigital number, since it uses as much as digits as its factorization.

158919461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 44.

The square root of 158919461 is about 12606.3262293184. The cubic root of 158919461 is about 541.6586643183.

It can be divided in two parts, 15891 and 9461, that added together give a palindrome (25352).

The spelling of 158919461 in words is "one hundred fifty-eight million, nine hundred nineteen thousand, four hundred sixty-one".