134021445 has 16 divisors (see below), whose sum is σ = 216559872. Its totient is φ = 70769600.

The previous prime is 134021429. The next prime is 134021467. The reversal of 134021445 is 544120431.

It is not a de Polignac number, because 134021445 - 2⁴ = 134021429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42717 + ... + 45746.

It is an arithmetic number, because the mean of its divisors is an integer number (13534992).

Almost surely, 2^134021445 is an apocalyptic number.

134021445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134021445 is a deficient number, since it is larger than the sum of its proper divisors (82538427).

134021445 is a wasteful number, since it uses less digits than its factorization.

134021445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88572.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 134021445 is about 11576.7631486526. The cubic root of 134021445 is about 511.7502914929.

Adding to 134021445 its reverse (544120431), we get a palindrome (678141876).

The spelling of 134021445 in words is "one hundred thirty-four million, twenty-one thousand, four hundred forty-five".