145154441552540 has 96 divisors (see below), whose sum is σ = 348751523248128. Its totient is φ = 49712857920000.

The previous prime is 145154441552443. The next prime is 145154441552609. The reversal of 145154441552540 is 45255144451541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471600095 + ... + 471907785.

It is an arithmetic number, because the mean of its divisors is an integer number (3632828367168).

Almost surely, 2^{145154441552540} is an apocalyptic number.

145154441552540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145154441552540 is an abundant number, since it is smaller than the sum of its proper divisors (203597081695588).

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

145154441552540 is a wasteful number, since it uses less digits than its factorization.

145154441552540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311379 (or 311377 counting only the distinct ones).

The product of its (nonzero) digits is 6400000, while the sum is 50.

The spelling of 145154441552540 in words is "one hundred forty-five trillion, one hundred fifty-four billion, four hundred forty-one million, five hundred fifty-two thousand, five hundred forty".