146724769 has 3 divisors (see below), whose sum is σ = 146736883. Its totient is φ = 146712656.

The previous prime is 146724763. The next prime is 146724779. The reversal of 146724769 is 967427641.

The square root of 146724769 is 12113.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 967427641 = 37 ⋅26146693.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 101767744 = 6705^2 + 10088^2 .

It is not a de Polignac number, because 146724769 - 2³ = 146724761 is a prime.

It is a super-2 number, since 2×146724769² = 43056315676206722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146724761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6057 + ... + 18169.

Almost surely, 2^146724769 is an apocalyptic number.

146724769 is the 12113-rd square number.

146724769 is the 6057-th centered octagonal number.

It is an amenable number.

146724769 is a deficient number, since it is larger than the sum of its proper divisors (12114).

146724769 is an frugal number, since it uses more digits than its factorization.

146724769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24226 (or 12113 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The cubic root of 146724769 is about 527.4336225186.

The spelling of 146724769 in words is "one hundred forty-six million, seven hundred twenty-four thousand, seven hundred sixty-nine".