134666788 has 6 divisors (see below), whose sum is σ = 235666886. Its totient is φ = 67333392.

The previous prime is 134666773. The next prime is 134666803. The reversal of 134666788 is 887666431.

It is an interprime number because it is at equal distance from previous prime (134666773) and next prime (134666803).

It can be written as a sum of positive squares in only one way, i.e., 91738084 + 42928704 = 9578^2 + 6552^2 .

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16833345 + ... + 16833352.

Almost surely, 2^134666788 is an apocalyptic number.

It is an amenable number.

134666788 is a deficient number, since it is larger than the sum of its proper divisors (101000098).

134666788 is a wasteful number, since it uses less digits than its factorization.

134666788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666701 (or 33666699 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 134666788 is about 11604.6020181650. The cubic root of 134666788 is about 512.5703736795.

The spelling of 134666788 in words is "one hundred thirty-four million, six hundred sixty-six thousand, seven hundred eighty-eight".