154201071061 has 2 divisors, whose sum is σ = 154201071062. Its totient is φ = 154201071060.

The previous prime is 154201071049. The next prime is 154201071109. The reversal of 154201071061 is 160170102451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147547406161 + 6653664900 = 384119^2 + 81570^2 .

It is a cyclic number.

It is not a de Polignac number, because 154201071061 - 2³⁵ = 119841332693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154201071961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77100535530 + 77100535531.

It is an arithmetic number, because the mean of its divisors is an integer number (77100535531).

Almost surely, 2^154201071061 is an apocalyptic number.

It is an amenable number.

154201071061 is a deficient number, since it is larger than the sum of its proper divisors (1).

154201071061 is an equidigital number, since it uses as much as digits as its factorization.

154201071061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The spelling of 154201071061 in words is "one hundred fifty-four billion, two hundred one million, seventy-one thousand, sixty-one".