145131635502 has 96 divisors (see below), whose sum is σ = 368990189568. Its totient is φ = 40363178688.

The previous prime is 145131635497. The next prime is 145131635503. The reversal of 145131635502 is 205536131541.

145131635502 is a `hidden beast` number, since 1 + 4 + 5 + 13 + 1 + 635 + 5 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145131635503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1541763 + ... + 1633185.

It is an arithmetic number, because the mean of its divisors is an integer number (3843647808).

Almost surely, 2^145131635502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145131635502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184495094784).

145131635502 is an abundant number, since it is smaller than the sum of its proper divisors (223858554066).

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

145131635502 is a wasteful number, since it uses less digits than its factorization.

145131635502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91774 (or 91771 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 145131635502 in words is "one hundred forty-five billion, one hundred thirty-one million, six hundred thirty-five thousand, five hundred two".