145140123502 has 32 divisors (see below), whose sum is σ = 237993655680. Its totient is φ = 65836378080.

The previous prime is 145140123467. The next prime is 145140123503. The reversal of 145140123502 is 205321041541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145140123503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24727024 + ... + 24732892.

It is an arithmetic number, because the mean of its divisors is an integer number (7437301740).

Almost surely, 2^145140123502 is an apocalyptic number.

145140123502 is a deficient number, since it is larger than the sum of its proper divisors (92853532178).

145140123502 is a wasteful number, since it uses less digits than its factorization.

145140123502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016.

The product of its (nonzero) digits is 4800, while the sum is 28.

It can be divided in two parts, 1451401 and 23502, that added together give a triangular number (1474903 = T₁₇₁₇).

The spelling of 145140123502 in words is "one hundred forty-five billion, one hundred forty million, one hundred twenty-three thousand, five hundred two".