134215947 has 24 divisors (see below), whose sum is σ = 201976320. Its totient is φ = 89064360.

The previous prime is 134215931. The next prime is 134215999. The reversal of 134215947 is 749512431.

It is not a de Polignac number, because 134215947 - 2⁴ = 134215931 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (134215447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56922 + ... + 59232.

It is an arithmetic number, because the mean of its divisors is an integer number (8415680).

Almost surely, 2^134215947 is an apocalyptic number.

134215947 is a deficient number, since it is larger than the sum of its proper divisors (67760373).

134215947 is an equidigital number, since it uses as much as digits as its factorization.

134215947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2553 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 134215947 is about 11585.1606376433. The cubic root of 134215947 is about 511.9977353314.

The spelling of 134215947 in words is "one hundred thirty-four million, two hundred fifteen thousand, nine hundred forty-seven".