154202542056253 has 2 divisors, whose sum is σ = 154202542056254. Its totient is φ = 154202542056252.

The previous prime is 154202542056229. The next prime is 154202542056361. The reversal of 154202542056253 is 352650245202451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81995596640164 + 72206945416089 = 9055142^2 + 8497467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154202542056253 is a prime.

It is a super-2 number, since 2×154202542056253² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154202542056053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77101271028126 + 77101271028127.

It is an arithmetic number, because the mean of its divisors is an integer number (77101271028127).

Almost surely, 2^{154202542056253} is an apocalyptic number.

It is an amenable number.

154202542056253 is a deficient number, since it is larger than the sum of its proper divisors (1).

154202542056253 is an equidigital number, since it uses as much as digits as its factorization.

154202542056253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 154202542056253 in words is "one hundred fifty-four trillion, two hundred two billion, five hundred forty-two million, fifty-six thousand, two hundred fifty-three".