154612564088149 has 2 divisors, whose sum is σ = 154612564088150. Its totient is φ = 154612564088148.

The previous prime is 154612564088141. The next prime is 154612564088167. The reversal of 154612564088149 is 941880465216451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137897696710225 + 16714867377924 = 11742985^2 + 4088382^2 .

It is a cyclic number.

It is not a de Polignac number, because 154612564088149 - 2³ = 154612564088141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154612564088141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77306282044074 + 77306282044075.

It is an arithmetic number, because the mean of its divisors is an integer number (77306282044075).

Almost surely, 2^{154612564088149} is an apocalyptic number.

It is an amenable number.

154612564088149 is a deficient number, since it is larger than the sum of its proper divisors (1).

154612564088149 is an equidigital number, since it uses as much as digits as its factorization.

154612564088149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66355200, while the sum is 64.

The spelling of 154612564088149 in words is "one hundred fifty-four trillion, six hundred twelve billion, five hundred sixty-four million, eighty-eight thousand, one hundred forty-nine".