134861769 has 45 divisors (see below), whose sum is σ = 230166573. Its totient is φ = 76088376.

The previous prime is 134861761. The next prime is 134861773. The reversal of 134861769 is 967168431.

It is a happy number.

The square root of 134861769 is 11613.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 134861769 - 2³ = 134861761 is a prime.

It is a super-2 number, since 2×134861769² = 36375393475618722, which contains 22 as substring.

Its product of digits (217728) is a multiple of the sum of its prime factors (192).

It is not an unprimeable number, because it can be changed into a prime (134861761) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1707072 + ... + 1707150.

Almost surely, 2^134861769 is an apocalyptic number.

134861769 is the 11613-rd square number.

134861769 is the 5807-th centered octagonal number.

It is an amenable number.

134861769 is a deficient number, since it is larger than the sum of its proper divisors (95304804).

134861769 is an frugal number, since it uses more digits than its factorization.

134861769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 89 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The cubic root of 134861769 is about 512.8176340717.

The spelling of 134861769 in words is "one hundred thirty-four million, eight hundred sixty-one thousand, seven hundred sixty-nine".