145203511240454 has 16 divisors (see below), whose sum is σ = 221794487193600. Its totient is φ = 71282283773064.

The previous prime is 145203511240393. The next prime is 145203511240523. The reversal of 145203511240454 is 454042115302541.

It is a super-2 number, since 2×145203511240454² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567037542 + ... + 2567094105.

It is an arithmetic number, because the mean of its divisors is an integer number (13862155449600).

Almost surely, 2^{145203511240454} is an apocalyptic number.

145203511240454 is a deficient number, since it is larger than the sum of its proper divisors (76590975953146).

145203511240454 is a wasteful number, since it uses less digits than its factorization.

145203511240454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134131907.

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 145203511240454 its reverse (454042115302541), we get a palindrome (599245626542995).

The spelling of 145203511240454 in words is "one hundred forty-five trillion, two hundred three billion, five hundred eleven million, two hundred forty thousand, four hundred fifty-four".