134041403421 has 30 divisors (see below), whose sum is σ = 205792871130. Its totient is φ = 86945703264.

The previous prime is 134041403383. The next prime is 134041403459. The reversal of 134041403421 is 124304140431.

It is an interprime number because it is at equal distance from previous prime (134041403383) and next prime (134041403459).

It can be written as a sum of positive squares in 3 ways, for example, as 48406160196 + 85635243225 = 220014^2 + 292635^2 .

It is a de Polignac number, because none of the positive numbers 2^k-134041403421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134041403491) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 493506 + ... + 715283.

It is an arithmetic number, because the mean of its divisors is an integer number (6859762371).

Almost surely, 2^134041403421 is an apocalyptic number.

It is an amenable number.

134041403421 is a deficient number, since it is larger than the sum of its proper divisors (71751467709).

134041403421 is an equidigital number, since it uses as much as digits as its factorization.

134041403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208875 (or 1208829 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 134041403421 its reverse (124304140431), we get a palindrome (258345543852).

The spelling of 134041403421 in words is "one hundred thirty-four billion, forty-one million, four hundred three thousand, four hundred twenty-one".