202153254502097 has 4 divisors (see below), whose sum is σ = 202168276679076. Its totient is φ = 202138232325120.

The previous prime is 202153254502051. The next prime is 202153254502163. The reversal of 202153254502097 is 790205452351202.

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 193694690795776 + 8458563706321 = 13917424^2 + 2908361^2 .

It is a cyclic number.

It is not a de Polignac number, because 202153254502097 - 2⁴² = 197755207990993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202153254502597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7511068304 + ... + 7511095217.

It is an arithmetic number, because the mean of its divisors is an integer number (50542069169769).

Almost surely, 2^{202153254502097} is an apocalyptic number.

It is an amenable number.

202153254502097 is a deficient number, since it is larger than the sum of its proper divisors (15022176979).

202153254502097 is a wasteful number, since it uses less digits than its factorization.

202153254502097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022176978.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 202153254502097 in words is "two hundred two trillion, one hundred fifty-three billion, two hundred fifty-four million, five hundred two thousand, ninety-seven".