134431251445 has 4 divisors (see below), whose sum is σ = 161317501740. Its totient is φ = 107545001152.

The previous prime is 134431251431. The next prime is 134431251467. The reversal of 134431251445 is 544152134431.

It is a happy number.

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 18781606116 + 115649645329 = 137046^2 + 340073^2 .

It is a cyclic number.

It is not a de Polignac number, because 134431251445 - 2¹¹ = 134431249397 is a prime.

It is a super-2 number, since 2×134431251445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 13443125140 + ... + 13443125149.

It is an arithmetic number, because the mean of its divisors is an integer number (40329375435).

Almost surely, 2^134431251445 is an apocalyptic number.

It is an amenable number.

134431251445 is a deficient number, since it is larger than the sum of its proper divisors (26886250295).

134431251445 is an equidigital number, since it uses as much as digits as its factorization.

134431251445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26886250294.

The product of its digits is 115200, while the sum is 37.

Adding to 134431251445 its reverse (544152134431), we get a palindrome (678583385876).

The spelling of 134431251445 in words is "one hundred thirty-four billion, four hundred thirty-one million, two hundred fifty-one thousand, four hundred forty-five".