154203012345061 has 2 divisors, whose sum is σ = 154203012345062. Its totient is φ = 154203012345060.

The previous prime is 154203012345001. The next prime is 154203012345103. The reversal of 154203012345061 is 160543210302451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94604704985025 + 59598307360036 = 9726495^2 + 7719994^2 .

It is a cyclic number.

It is not a de Polignac number, because 154203012345061 - 2⁴¹ = 152003989089509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154203012345061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154203012345001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77101506172530 + 77101506172531.

It is an arithmetic number, because the mean of its divisors is an integer number (77101506172531).

Almost surely, 2^{154203012345061} is an apocalyptic number.

It is an amenable number.

154203012345061 is a deficient number, since it is larger than the sum of its proper divisors (1).

154203012345061 is an equidigital number, since it uses as much as digits as its factorization.

154203012345061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 154203012345061 in words is "one hundred fifty-four trillion, two hundred three billion, twelve million, three hundred forty-five thousand, sixty-one".