158962487401 has 27 divisors (see below), whose sum is σ = 172878993399. Its totient is φ = 146135080128.

The previous prime is 158962487389. The next prime is 158962487429. The reversal of 158962487401 is 104784269851.

The square root of 158962487401 is 398701.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 123759722025 + 35202765376 = 351795^2 + 187624^2 .

It is not a de Polignac number, because 158962487401 - 2⁷ = 158962487273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158962485401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 318561850 + ... + 318562348.

Almost surely, 2^158962487401 is an apocalyptic number.

158962487401 is the 398701-st square number.

158962487401 is the 199351-st centered octagonal number.

It is an amenable number.

158962487401 is a deficient number, since it is larger than the sum of its proper divisors (13916505998).

158962487401 is an frugal number, since it uses more digits than its factorization.

158962487401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

It can be divided in two parts, 1589624 and 87401, that added together give a square (1677025 = 1295²).

The spelling of 158962487401 in words is "one hundred fifty-eight billion, nine hundred sixty-two million, four hundred eighty-seven thousand, four hundred one".