145338057 has 12 divisors (see below), whose sum is σ = 217708400. Its totient is φ = 96891876.

The previous prime is 145338019. The next prime is 145338059. The reversal of 145338057 is 750833541.

145338057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145338057 - 2¹² = 145333961 is a prime.

It is a super-2 number, since 2×145338057² = 42246301625070498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145338059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298807 + ... + 299292.

Almost surely, 2^145338057 is an apocalyptic number.

It is an amenable number.

145338057 is a deficient number, since it is larger than the sum of its proper divisors (72370343).

145338057 is an frugal number, since it uses more digits than its factorization.

145338057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598114 (or 598102 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 145338057 is about 12055.6234596142. The cubic root of 145338057 is about 525.7667490253.

The spelling of 145338057 in words is "one hundred forty-five million, three hundred thirty-eight thousand, fifty-seven".