154243230157 has 2 divisors, whose sum is σ = 154243230158. Its totient is φ = 154243230156.

The previous prime is 154243230103. The next prime is 154243230161. The reversal of 154243230157 is 751032342451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124040613636 + 30202616521 = 352194^2 + 173789^2 .

It is a cyclic number.

It is not a de Polignac number, because 154243230157 - 2¹⁵ = 154243197389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154243230257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77121615078 + 77121615079.

It is an arithmetic number, because the mean of its divisors is an integer number (77121615079).

Almost surely, 2^154243230157 is an apocalyptic number.

It is an amenable number.

154243230157 is a deficient number, since it is larger than the sum of its proper divisors (1).

154243230157 is an equidigital number, since it uses as much as digits as its factorization.

154243230157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

It can be divided in two parts, 154243 and 230157, that added together give a square (384400 = 620²).

The spelling of 154243230157 in words is "one hundred fifty-four billion, two hundred forty-three million, two hundred thirty thousand, one hundred fifty-seven".