145603897 has 8 divisors (see below), whose sum is σ = 153394560. Its totient is φ = 137826000.

The previous prime is 145603837. The next prime is 145603919. The reversal of 145603897 is 798306541.

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

It is not a de Polignac number, because 145603897 - 2²³ = 137215289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145603817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28272 + ... + 33022.

It is an arithmetic number, because the mean of its divisors is an integer number (19174320).

Almost surely, 2^145603897 is an apocalyptic number.

It is an amenable number.

145603897 is a deficient number, since it is larger than the sum of its proper divisors (7790663).

145603897 is a wasteful number, since it uses less digits than its factorization.

145603897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 145603897 is about 12066.6439824833. The cubic root of 145603897 is about 526.0871163665.

The spelling of 145603897 in words is "one hundred forty-five million, six hundred three thousand, eight hundred ninety-seven".