145791340157 has 4 divisors (see below), whose sum is σ = 145820061276. Its totient is φ = 145762619040.

The previous prime is 145791340061. The next prime is 145791340207. The reversal of 145791340157 is 751043197541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 105041458201 + 40749881956 = 324101^2 + 201866^2 .

It is a cyclic number.

It is not a de Polignac number, because 145791340157 - 2²⁶ = 145724231293 is a prime.

It is a super-2 number, since 2×145791340157² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145791340657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14352944 + ... + 14363097.

It is an arithmetic number, because the mean of its divisors is an integer number (36455015319).

Almost surely, 2^145791340157 is an apocalyptic number.

It is an amenable number.

145791340157 is a deficient number, since it is larger than the sum of its proper divisors (28721119).

145791340157 is an equidigital number, since it uses as much as digits as its factorization.

145791340157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28721118.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 145791340157 in words is "one hundred forty-five billion, seven hundred ninety-one million, three hundred forty thousand, one hundred fifty-seven".