134969431 has 8 divisors (see below), whose sum is σ = 137359728. Its totient is φ = 132613000.

The previous prime is 134969413. The next prime is 134969441.

134969431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 134969431 - 2⁹ = 134968919 is a prime.

It is a super-2 number, since 2×134969431² = 36433494608927522, 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 (134969441) 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 7 ways as a sum of consecutive naturals, for example, 1030236 + ... + 1030366.

It is an arithmetic number, because the mean of its divisors is an integer number (17169966).

Almost surely, 2^134969431 is an apocalyptic number.

134969431 is a deficient number, since it is larger than the sum of its proper divisors (2390297).

134969431 is an frugal number, since it uses more digits than its factorization.

134969431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 232 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 134969431 is about 11617.6344838353. The cubic root of 134969431 is about 512.9540608914.

The spelling of 134969431 in words is "one hundred thirty-four million, nine hundred sixty-nine thousand, four hundred thirty-one".