145454131502 has 48 divisors (see below), whose sum is σ = 232871708160. Its totient is φ = 68003782704.

The previous prime is 145454131453. The next prime is 145454131507. The reversal of 145454131502 is 205131454541.

It is a happy number.

It is a super-2 number, since 2×145454131502² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145454131507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29567399 + ... + 29572317.

It is an arithmetic number, because the mean of its divisors is an integer number (4851493920).

Almost surely, 2^145454131502 is an apocalyptic number.

145454131502 is a deficient number, since it is larger than the sum of its proper divisors (87417576658).

145454131502 is a wasteful number, since it uses less digits than its factorization.

145454131502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205 (or 5126 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 145454131502 in words is "one hundred forty-five billion, four hundred fifty-four million, one hundred thirty-one thousand, five hundred two".