145122553454553 has 24 divisors (see below), whose sum is σ = 221533275206880. Its totient is φ = 91291184784000.

The previous prime is 145122553454551. The next prime is 145122553454587. The reversal of 145122553454553 is 355454355221541.

It is a happy number.

145122553454553 is a `hidden beast` number, since 1 + 4 + 5 + 1 + 2 + 2 + 5 + 5 + 34 + 54 + 553 = 666.

It is not a de Polignac number, because 145122553454553 - 2¹ = 145122553454551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145122553454553.

It is not an unprimeable number, because it can be changed into a prime (145122553454551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1690534576 + ... + 1690620417.

It is an arithmetic number, because the mean of its divisors is an integer number (9230553133620).

Almost surely, 2^{145122553454553} is an apocalyptic number.

It is an amenable number.

145122553454553 is a deficient number, since it is larger than the sum of its proper divisors (76410721752327).

145122553454553 is a wasteful number, since it uses less digits than its factorization.

145122553454553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381155269 (or 3381155266 counting only the distinct ones).

The product of its digits is 36000000, while the sum is 54.

The spelling of 145122553454553 in words is "one hundred forty-five trillion, one hundred twenty-two billion, five hundred fifty-three million, four hundred fifty-four thousand, five hundred fifty-three".