145097538 has 8 divisors (see below), whose sum is σ = 290195088. Its totient is φ = 48365844.

The previous prime is 145097531. The next prime is 145097539. The reversal of 145097538 is 835790541.

It is a sphenic number, since it is the product of 3 distinct primes.

145097538 is an admirable number.

It is a super-2 number, since 2×145097538² = 42106591067322888, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145097538.

It is not an unprimeable number, because it can be changed into a prime (145097531) 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, 12091456 + ... + 12091467.

It is an arithmetic number, because the mean of its divisors is an integer number (36274386).

Almost surely, 2^145097538 is an apocalyptic number.

145097538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145097538 is a wasteful number, since it uses less digits than its factorization.

145097538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24182928.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 145097538 is about 12045.6439429364. The cubic root of 145097538 is about 525.4765595707.

The spelling of 145097538 in words is "one hundred forty-five million, ninety-seven thousand, five hundred thirty-eight".