11154457 has 2 divisors, whose sum is σ = 11154458. Its totient is φ = 11154456.

The previous prime is 11154449. The next prime is 11154461. The reversal of 11154457 is 75445111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 811801 = 3216^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 11154457 - 2³ = 11154449 is a prime.

It is equal to p₇₃₆₀₃₉ and since 11154457 and 736039 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11154467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577228 + 5577229.

It is an arithmetic number, because the mean of its divisors is an integer number (5577229).

Almost surely, 2^11154457 is an apocalyptic number.

It is an amenable number.

11154457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154457 is an equidigital number, since it uses as much as digits as its factorization.

11154457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2800, while the sum is 28.

The square root of 11154457 is about 3339.8288878324. The cubic root of 11154457 is about 223.4341118400.

Adding to 11154457 its reverse (75445111), we get a palindrome (86599568).

It can be divided in two parts, 11154 and 457, that added together give a palindrome (11611).

The spelling of 11154457 in words is "eleven million, one hundred fifty-four thousand, four hundred fifty-seven".