134777731 has 8 divisors (see below), whose sum is σ = 149441328. Its totient is φ = 120516000.

The previous prime is 134777729. The next prime is 134777743. The reversal of 134777731 is 137777431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134777731 - 2¹ = 134777729 is a prime.

It is a super-2 number, since 2×134777731² = 36330073547016722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134777831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99760 + ... + 101101.

It is an arithmetic number, because the mean of its divisors is an integer number (18680166).

Almost surely, 2^134777731 is an apocalyptic number.

134777731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

134777731 is a deficient number, since it is larger than the sum of its proper divisors (14663597).

134777731 is a wasteful number, since it uses less digits than its factorization.

134777731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200933.

The product of its digits is 86436, while the sum is 40.

The square root of 134777731 is about 11609.3811635246. The cubic root of 134777731 is about 512.7110925776.

The spelling of 134777731 in words is "one hundred thirty-four million, seven hundred seventy-seven thousand, seven hundred thirty-one".