133674537 has 8 divisors (see below), whose sum is σ = 178305120. Its totient is φ = 89080160.

The previous prime is 133674523. The next prime is 133674559. The reversal of 133674537 is 735476331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133674537 - 2⁴ = 133674521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133674495 and 133674504.

It is not an unprimeable number, because it can be changed into a prime (133674517) 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, 1237 + ... + 16397.

It is an arithmetic number, because the mean of its divisors is an integer number (22288140).

Almost surely, 2^133674537 is an apocalyptic number.

It is an amenable number.

133674537 is a deficient number, since it is larger than the sum of its proper divisors (44630583).

133674537 is a wasteful number, since it uses less digits than its factorization.

133674537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18103.

The product of its digits is 158760, while the sum is 39.

The square root of 133674537 is about 11561.7704959059. The cubic root of 133674537 is about 511.3083630464.

The spelling of 133674537 in words is "one hundred thirty-three million, six hundred seventy-four thousand, five hundred thirty-seven".