145345143632 has 20 divisors (see below), whose sum is σ = 303268232820. Its totient is φ = 67082373888.

The previous prime is 145345143631. The next prime is 145345143641. The reversal of 145345143632 is 236341543541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36811794496 + 108533349136 = 191864^2 + 329444^2 .

It is a super-2 number, since 2×145345143632² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145345143632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145345143631) 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, 349387157 + ... + 349387572.

It is an arithmetic number, because the mean of its divisors is an integer number (15163411641).

Almost surely, 2^145345143632 is an apocalyptic number.

It is an amenable number.

145345143632 is an abundant number, since it is smaller than the sum of its proper divisors (157923089188).

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

145345143632 is a wasteful number, since it uses less digits than its factorization.

145345143632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698774750 (or 698774744 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The spelling of 145345143632 in words is "one hundred forty-five billion, three hundred forty-five million, one hundred forty-three thousand, six hundred thirty-two".