145678829 has 2 divisors, whose sum is σ = 145678830. Its totient is φ = 145678828.

The previous prime is 145678801. The next prime is 145678853. The reversal of 145678829 is 928876541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111724900 + 33953929 = 10570^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 145678829 - 2¹² = 145674733 is a prime.

It is a super-2 number, since 2×145678829² = 42444642437622482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145678129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72839414 + 72839415.

It is an arithmetic number, because the mean of its divisors is an integer number (72839415).

Almost surely, 2^145678829 is an apocalyptic number.

It is an amenable number.

145678829 is a deficient number, since it is larger than the sum of its proper divisors (1).

145678829 is an equidigital number, since it uses as much as digits as its factorization.

145678829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 50.

The square root of 145678829 is about 12069.7485060792. The cubic root of 145678829 is about 526.1773474666.

The spelling of 145678829 in words is "one hundred forty-five million, six hundred seventy-eight thousand, eight hundred twenty-nine".