145134377 has 4 divisors (see below), whose sum is σ = 145674180. Its totient is φ = 144594576.

The previous prime is 145134373. The next prime is 145134391. The reversal of 145134377 is 773431541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773431541 = 17 ⋅45495973.

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 128618281 = 4064^2 + 11341^2 .

It is a cyclic number.

It is not a de Polignac number, because 145134377 - 2² = 145134373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145134373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269498 + ... + 270035.

It is an arithmetic number, because the mean of its divisors is an integer number (36418545).

Almost surely, 2^145134377 is an apocalyptic number.

It is an amenable number.

145134377 is a deficient number, since it is larger than the sum of its proper divisors (539803).

145134377 is an equidigital number, since it uses as much as digits as its factorization.

145134377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539802.

The product of its digits is 35280, while the sum is 35.

The square root of 145134377 is about 12047.1729878839. The cubic root of 145134377 is about 525.5210271135.

The spelling of 145134377 in words is "one hundred forty-five million, one hundred thirty-four thousand, three hundred seventy-seven".