158436587461 has 2 divisors, whose sum is σ = 158436587462. Its totient is φ = 158436587460.

The previous prime is 158436587453. The next prime is 158436587501. The reversal of 158436587461 is 164785634851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120899462436 + 37537125025 = 347706^2 + 193745^2 .

It is a cyclic number.

It is not a de Polignac number, because 158436587461 - 2³ = 158436587453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158436587396 and 158436587405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158436587411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79218293730 + 79218293731.

It is an arithmetic number, because the mean of its divisors is an integer number (79218293731).

Almost surely, 2^158436587461 is an apocalyptic number.

It is an amenable number.

158436587461 is a deficient number, since it is larger than the sum of its proper divisors (1).

158436587461 is an equidigital number, since it uses as much as digits as its factorization.

158436587461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19353600, while the sum is 58.

The spelling of 158436587461 in words is "one hundred fifty-eight billion, four hundred thirty-six million, five hundred eighty-seven thousand, four hundred sixty-one".