145326221154 has 12 divisors (see below), whose sum is σ = 314873479206. Its totient is φ = 48442073712.

The previous prime is 145326221153. The next prime is 145326221191. The reversal of 145326221154 is 451122623541.

145326221154 is a `hidden beast` number, since 1 + 4 + 532 + 6 + 2 + 2 + 115 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 106762295025 + 38563926129 = 326745^2 + 196377^2 .

It is a super-2 number, since 2×145326221154² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145326221153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4036839459 + ... + 4036839494.

Almost surely, 2^145326221154 is an apocalyptic number.

145326221154 is an abundant number, since it is smaller than the sum of its proper divisors (169547258052).

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

145326221154 is a wasteful number, since it uses less digits than its factorization.

145326221154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073678961 (or 8073678958 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 145326221154 its reverse (451122623541), we get a palindrome (596448844695).

The spelling of 145326221154 in words is "one hundred forty-five billion, three hundred twenty-six million, two hundred twenty-one thousand, one hundred fifty-four".