145131102 has 40 divisors (see below), whose sum is σ = 328224600. Its totient is φ = 47927376.

The previous prime is 145131047. The next prime is 145131113. The reversal of 145131102 is 201131541.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13549 + ... + 21767.

It is an arithmetic number, because the mean of its divisors is an integer number (8205615).

Almost surely, 2^145131102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145131102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164112300).

145131102 is an abundant number, since it is smaller than the sum of its proper divisors (183093498).

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

145131102 is a wasteful number, since it uses less digits than its factorization.

145131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342 (or 8333 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 145131102 is about 12047.0370631122. The cubic root of 145131102 is about 525.5170742381.

Adding to 145131102 its reverse (201131541), we get a palindrome (346262643).

The spelling of 145131102 in words is "one hundred forty-five million, one hundred thirty-one thousand, one hundred two".