154587090392149 has 2 divisors, whose sum is σ = 154587090392150. Its totient is φ = 154587090392148.

The previous prime is 154587090391973. The next prime is 154587090392191. The reversal of 154587090392149 is 941293090785451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116135495517924 + 38451594874225 = 10776618^2 + 6200935^2 .

It is an emirp because it is prime and its reverse (941293090785451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154587090392149 - 2²¹ = 154587088294997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154587090398149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77293545196074 + 77293545196075.

It is an arithmetic number, because the mean of its divisors is an integer number (77293545196075).

Almost surely, 2^{154587090392149} is an apocalyptic number.

It is an amenable number.

154587090392149 is a deficient number, since it is larger than the sum of its proper divisors (1).

154587090392149 is an equidigital number, since it uses as much as digits as its factorization.

154587090392149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 154587090392149 in words is "one hundred fifty-four trillion, five hundred eighty-seven billion, ninety million, three hundred ninety-two thousand, one hundred forty-nine".