134442397 has 16 divisors (see below), whose sum is σ = 140061312. Its totient is φ = 128980800.

The previous prime is 134442389. The next prime is 134442431. The reversal of 134442397 is 793244431.

It is not a de Polignac number, because 134442397 - 2³ = 134442389 is a prime.

It is a super-2 number, since 2×134442397² = 36149516222211218, which 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 (134442197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856243 + ... + 856399.

It is an arithmetic number, because the mean of its divisors is an integer number (8753832).

Almost surely, 2^134442397 is an apocalyptic number.

It is an amenable number.

134442397 is a deficient number, since it is larger than the sum of its proper divisors (5618915).

134442397 is a wasteful number, since it uses less digits than its factorization.

134442397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468.

The product of its digits is 72576, while the sum is 37.

The square root of 134442397 is about 11594.9297971139. The cubic root of 134442397 is about 512.2855221526.

The spelling of 134442397 in words is "one hundred thirty-four million, four hundred forty-two thousand, three hundred ninety-seven".