145095197 has 8 divisors (see below), whose sum is σ = 156372216. Its totient is φ = 133834752.

The previous prime is 145095169. The next prime is 145095217. The reversal of 145095197 is 791590541.

It can be written as a sum of positive squares in 4 ways, for example, as 79905721 + 65189476 = 8939^2 + 8074^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145095197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145095107) 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, 18773 + ... + 25349.

It is an arithmetic number, because the mean of its divisors is an integer number (19546527).

Almost surely, 2^145095197 is an apocalyptic number.

It is an amenable number.

145095197 is a deficient number, since it is larger than the sum of its proper divisors (11277019).

145095197 is a wasteful number, since it uses less digits than its factorization.

145095197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 145095197 is about 12045.5467704874. The cubic root of 145095197 is about 525.4737335470.

The spelling of 145095197 in words is "one hundred forty-five million, ninety-five thousand, one hundred ninety-seven".