134621357 has 4 divisors (see below), whose sum is σ = 144976860. Its totient is φ = 124265856.

The previous prime is 134621339. The next prime is 134621363. The reversal of 134621357 is 753126431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90079081 + 44542276 = 9491^2 + 6674^2 .

It is not a de Polignac number, because 134621357 - 2⁸ = 134621101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134621257) 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, 5177732 + ... + 5177757.

It is an arithmetic number, because the mean of its divisors is an integer number (36244215).

Almost surely, 2^134621357 is an apocalyptic number.

It is an amenable number.

134621357 is a deficient number, since it is larger than the sum of its proper divisors (10355503).

134621357 is a wasteful number, since it uses less digits than its factorization.

134621357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10355502.

The product of its digits is 15120, while the sum is 32.

The square root of 134621357 is about 11602.6443968606. The cubic root of 134621357 is about 512.5127271874.

Adding to 134621357 its reverse (753126431), we get a palindrome (887747788).

The spelling of 134621357 in words is "one hundred thirty-four million, six hundred twenty-one thousand, three hundred fifty-seven".