145034893 has 2 divisors, whose sum is σ = 145034894. Its totient is φ = 145034892.

The previous prime is 145034863. The next prime is 145034899. The reversal of 145034893 is 398430541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138368169 + 6666724 = 11763^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 145034893 - 2⁵ = 145034861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145034899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72517446 + 72517447.

It is an arithmetic number, because the mean of its divisors is an integer number (72517447).

Almost surely, 2^145034893 is an apocalyptic number.

It is an amenable number.

145034893 is a deficient number, since it is larger than the sum of its proper divisors (1).

145034893 is an equidigital number, since it uses as much as digits as its factorization.

145034893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 145034893 is about 12043.0433446036. The cubic root of 145034893 is about 525.4009248905.

The spelling of 145034893 in words is "one hundred forty-five million, thirty-four thousand, eight hundred ninety-three".