145164597 has 4 divisors (see below), whose sum is σ = 193552800. Its totient is φ = 96776396.

The previous prime is 145164577. The next prime is 145164631. The reversal of 145164597 is 795461541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145164597 - 2¹⁰ = 145163573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145164527) 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, 24194097 + ... + 24194102.

It is an arithmetic number, because the mean of its divisors is an integer number (48388200).

Almost surely, 2^145164597 is an apocalyptic number.

It is an amenable number.

145164597 is a deficient number, since it is larger than the sum of its proper divisors (48388203).

145164597 is an equidigital number, since it uses as much as digits as its factorization.

145164597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48388202.

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

The square root of 145164597 is about 12048.4271587623. The cubic root of 145164597 is about 525.5574993898.

The spelling of 145164597 in words is "one hundred forty-five million, one hundred sixty-four thousand, five hundred ninety-seven".