134553231 has 48 divisors (see below), whose sum is σ = 214672640. Its totient is φ = 83980800.

The previous prime is 134553227. The next prime is 134553233. The reversal of 134553231 is 132355431.

It is not a de Polignac number, because 134553231 - 2² = 134553227 is a prime.

It is a super-2 number, since 2×134553231² = 36209143945078722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 134553195 and 134553204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134553233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 697071 + ... + 697263.

Almost surely, 2^134553231 is an apocalyptic number.

134553231 is a deficient number, since it is larger than the sum of its proper divisors (80119409).

134553231 is a wasteful number, since it uses less digits than its factorization.

134553231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 366 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 134553231 is about 11599.7082290892. The cubic root of 134553231 is about 512.4262591504.

The spelling of 134553231 in words is "one hundred thirty-four million, five hundred fifty-three thousand, two hundred thirty-one".