145154450124544 has 36 divisors (see below), whose sum is σ = 331133589350704. Its totient is φ = 62209050052608.

The previous prime is 145154450124521. The next prime is 145154450124547. The reversal of 145154450124544 is 445421054451541.

It is a happy number.

It is a super-2 number, since 2×145154450124544² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145154450124547) 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, 40500681837 + ... + 40500685420.

Almost surely, 2^{145154450124544} is an apocalyptic number.

145154450124544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145154450124544 is an abundant number, since it is smaller than the sum of its proper divisors (185979139226160).

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

145154450124544 is an frugal number, since it uses more digits than its factorization.

145154450124544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81001367280 (or 81001367266 counting only the distinct ones).

The product of its (nonzero) digits is 5120000, while the sum is 49.

The spelling of 145154450124544 in words is "one hundred forty-five trillion, one hundred fifty-four billion, four hundred fifty million, one hundred twenty-four thousand, five hundred forty-four".