154751420201197 has 2 divisors, whose sum is σ = 154751420201198. Its totient is φ = 154751420201196.

The previous prime is 154751420201179. The next prime is 154751420201263. The reversal of 154751420201197 is 791102024157451.

Together with previous prime (154751420201179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151731867566601 + 3019552634596 = 12317949^2 + 1737686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154751420201197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154751420201197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154751420201177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77375710100598 + 77375710100599.

It is an arithmetic number, because the mean of its divisors is an integer number (77375710100599).

Almost surely, 2^{154751420201197} is an apocalyptic number.

It is an amenable number.

154751420201197 is a deficient number, since it is larger than the sum of its proper divisors (1).

154751420201197 is an equidigital number, since it uses as much as digits as its factorization.

154751420201197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 154751420201197 in words is "one hundred fifty-four trillion, seven hundred fifty-one billion, four hundred twenty million, two hundred one thousand, one hundred ninety-seven".