134721747 has 12 divisors (see below), whose sum is σ = 195888784. Its totient is φ = 89218800.

The previous prime is 134721701. The next prime is 134721749. The reversal of 134721747 is 747127431.

134721747 is a `hidden beast` number, since 13 + 472 + 174 + 7 = 666.

It is not a de Polignac number, because 134721747 - 2⁶ = 134721683 is a prime.

It is a super-2 number, since 2×134721747² = 36299898229464018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134721749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48208 + ... + 50925.

Almost surely, 2^134721747 is an apocalyptic number.

134721747 is a deficient number, since it is larger than the sum of its proper divisors (61167037).

134721747 is a wasteful number, since it uses less digits than its factorization.

134721747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99290 (or 99287 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 134721747 is about 11606.9697595884. The cubic root of 134721747 is about 512.6400927350.

The spelling of 134721747 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, seven hundred forty-seven".