145245129102 has 80 divisors (see below), whose sum is σ = 335796373440. Its totient is φ = 46900047168.

The previous prime is 145245129089. The next prime is 145245129163. The reversal of 145245129102 is 201921542541.

145245129102 is a `hidden beast` number, since 1 + 4 + 52 + 4 + 512 + 91 + 0 + 2 = 666.

It is a super-2 number, since 2×145245129102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 571228 + ... + 785360.

It is an arithmetic number, because the mean of its divisors is an integer number (4197454668).

Almost surely, 2^145245129102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145245129102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167898186720).

145245129102 is an abundant number, since it is smaller than the sum of its proper divisors (190551244338).

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

145245129102 is a wasteful number, since it uses less digits than its factorization.

145245129102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214279 (or 214270 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 145245129102 in words is "one hundred forty-five billion, two hundred forty-five million, one hundred twenty-nine thousand, one hundred two".