134544021451 has 16 divisors (see below), whose sum is σ = 165039850944. Its totient is φ = 107052862464.

The previous prime is 134544021439. The next prime is 134544021487. The reversal of 134544021451 is 154120445431.

It is a happy number.

It is not a de Polignac number, because 134544021451 - 2⁵ = 134544021419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134544021431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7735300 + ... + 7752673.

It is an arithmetic number, because the mean of its divisors is an integer number (10314990684).

Almost surely, 2^134544021451 is an apocalyptic number.

134544021451 is a deficient number, since it is larger than the sum of its proper divisors (30495829493).

134544021451 is a wasteful number, since it uses less digits than its factorization.

134544021451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15488070.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 134544021451 its reverse (154120445431), we get a palindrome (288664466882).

The spelling of 134544021451 in words is "one hundred thirty-four billion, five hundred forty-four million, twenty-one thousand, four hundred fifty-one".