1254105401 has 2 divisors, whose sum is σ = 1254105402. Its totient is φ = 1254105400.

The previous prime is 1254105389. The next prime is 1254105409. The reversal of 1254105401 is 1045014521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992313001 + 261792400 = 31501^2 + 16180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254105401 - 2²⁶ = 1186996537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1254105409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627052700 + 627052701.

It is an arithmetic number, because the mean of its divisors is an integer number (627052701).

Almost surely, 2^1254105401 is an apocalyptic number.

It is an amenable number.

1254105401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254105401 is an equidigital number, since it uses as much as digits as its factorization.

1254105401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1254105401 is about 35413.3506039742. The cubic root of 1254105401 is about 1078.3953654008.

Adding to 1254105401 its reverse (1045014521), we get a palindrome (2299119922).

The spelling of 1254105401 in words is "one billion, two hundred fifty-four million, one hundred five thousand, four hundred one".