158451794201 has 4 divisors (see below), whose sum is σ = 158453774004. Its totient is φ = 158449814400.

The previous prime is 158451794183. The next prime is 158451794219. The reversal of 158451794201 is 102497154851.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (158451794183) and next prime (158451794219).

It can be written as a sum of positive squares in 2 ways, for example, as 14980536025 + 143471258176 = 122395^2 + 378776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158451794201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158451764201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864560 + ... + 1031681.

It is an arithmetic number, because the mean of its divisors is an integer number (39613443501).

Almost surely, 2^158451794201 is an apocalyptic number.

It is an amenable number.

158451794201 is a deficient number, since it is larger than the sum of its proper divisors (1979803).

158451794201 is an equidigital number, since it uses as much as digits as its factorization.

158451794201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979802.

The product of its (nonzero) digits is 403200, while the sum is 47.

Multiplying 158451794201 by its sum of digits (47), we get a palindrome (7447234327447).

The spelling of 158451794201 in words is "one hundred fifty-eight billion, four hundred fifty-one million, seven hundred ninety-four thousand, two hundred one".