134551731 has 4 divisors (see below), whose sum is σ = 179402312. Its totient is φ = 89701152.

The previous prime is 134551727. The next prime is 134551757. The reversal of 134551731 is 137155431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134551731 - 2² = 134551727 is a prime.

It is a super-2 number, since 2×134551731² = 36208336630192722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134551031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22425286 + ... + 22425291.

It is an arithmetic number, because the mean of its divisors is an integer number (44850578).

Almost surely, 2^134551731 is an apocalyptic number.

134551731 is a deficient number, since it is larger than the sum of its proper divisors (44850581).

134551731 is an equidigital number, since it uses as much as digits as its factorization.

134551731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44850580.

The product of its digits is 6300, while the sum is 30.

The square root of 134551731 is about 11599.6435721103. The cubic root of 134551731 is about 512.4243549666.

Subtracting from 134551731 its product of digits (6300), we obtain a palindrome (134545431).

The spelling of 134551731 in words is "one hundred thirty-four million, five hundred fifty-one thousand, seven hundred thirty-one".