140528168230157 has 4 divisors (see below), whose sum is σ = 140630519410140. Its totient is φ = 140425817050176.

The previous prime is 140528168230141. The next prime is 140528168230169. The reversal of 140528168230157 is 751032861825041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96747899274601 + 43780268955556 = 9836051^2 + 6616666^2 .

It is a cyclic number.

It is not a de Polignac number, because 140528168230157 - 2⁴ = 140528168230141 is a prime.

It is a super-2 number, since 2×140528168230157² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140528168230099 and 140528168230108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140528168230117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51175587932 + ... + 51175590677.

It is an arithmetic number, because the mean of its divisors is an integer number (35157629852535).

Almost surely, 2^{140528168230157} is an apocalyptic number.

It is an amenable number.

140528168230157 is a deficient number, since it is larger than the sum of its proper divisors (102351179983).

140528168230157 is a wasteful number, since it uses less digits than its factorization.

140528168230157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102351179982.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 140528168230157 in words is "one hundred forty trillion, five hundred twenty-eight billion, one hundred sixty-eight million, two hundred thirty thousand, one hundred fifty-seven".