154020793 has 2 divisors, whose sum is σ = 154020794. Its totient is φ = 154020792.

The previous prime is 154020781. The next prime is 154020847. The reversal of 154020793 is 397020451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149744169 + 4276624 = 12237^2 + 2068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154020793 is a prime.

It is not a weakly prime, because it can be changed into another prime (154020733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77010396 + 77010397.

It is an arithmetic number, because the mean of its divisors is an integer number (77010397).

Almost surely, 2^154020793 is an apocalyptic number.

It is an amenable number.

154020793 is a deficient number, since it is larger than the sum of its proper divisors (1).

154020793 is an equidigital number, since it uses as much as digits as its factorization.

154020793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 154020793 is about 12410.5113915584. The cubic root of 154020793 is about 536.0349639793.

The spelling of 154020793 in words is "one hundred fifty-four million, twenty thousand, seven hundred ninety-three".