154063493 has 2 divisors, whose sum is σ = 154063494. Its totient is φ = 154063492.

The previous prime is 154063423. The next prime is 154063501. The reversal of 154063493 is 394360451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133795489 + 20268004 = 11567^2 + 4502^2 .

It is an emirp because it is prime and its reverse (394360451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154063493 - 2²² = 149869189 is a prime.

It is a super-2 number, since 2×154063493² = 47471119750722098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154063423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77031746 + 77031747.

It is an arithmetic number, because the mean of its divisors is an integer number (77031747).

Almost surely, 2^154063493 is an apocalyptic number.

It is an amenable number.

154063493 is a deficient number, since it is larger than the sum of its proper divisors (1).

154063493 is an equidigital number, since it uses as much as digits as its factorization.

154063493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 154063493 is about 12412.2315882359. The cubic root of 154063493 is about 536.0844953395.

The spelling of 154063493 in words is "one hundred fifty-four million, sixty-three thousand, four hundred ninety-three".