154616274493 has 2 divisors, whose sum is σ = 154616274494. Its totient is φ = 154616274492.

The previous prime is 154616274481. The next prime is 154616274499. The reversal of 154616274493 is 394472616451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81260343844 + 73355930649 = 285062^2 + 270843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154616274493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154616274493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154616274499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77308137246 + 77308137247.

It is an arithmetic number, because the mean of its divisors is an integer number (77308137247).

Almost surely, 2^154616274493 is an apocalyptic number.

It is an amenable number.

154616274493 is a deficient number, since it is larger than the sum of its proper divisors (1).

154616274493 is an equidigital number, since it uses as much as digits as its factorization.

154616274493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The spelling of 154616274493 in words is "one hundred fifty-four billion, six hundred sixteen million, two hundred seventy-four thousand, four hundred ninety-three".