145365562197 has 64 divisors (see below), whose sum is σ = 240228576000. Its totient is φ = 86481561600.

The previous prime is 145365562187. The next prime is 145365562201. The reversal of 145365562197 is 791265563541.

145365562197 is a `hidden beast` number, since 1 + 4 + 5 + 3 + 6 + 5 + 5 + 621 + 9 + 7 = 666.

It is not a de Polignac number, because 145365562197 - 2⁸ = 145365561941 is a prime.

It is a super-2 number, since 2×145365562197² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145365562187) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490797 + ... + 729117.

It is an arithmetic number, because the mean of its divisors is an integer number (3753571500).

Almost surely, 2^145365562197 is an apocalyptic number.

It is an amenable number.

145365562197 is a deficient number, since it is larger than the sum of its proper divisors (94863013803).

145365562197 is a wasteful number, since it uses less digits than its factorization.

145365562197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238419 (or 238413 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 145365562197 in words is "one hundred forty-five billion, three hundred sixty-five million, five hundred sixty-two thousand, one hundred ninety-seven".