1554140101 has 2 divisors, whose sum is σ = 1554140102. Its totient is φ = 1554140100.

The previous prime is 1554140089. The next prime is 1554140149. The reversal of 1554140101 is 1010414551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 915365025 + 638775076 = 30255^2 + 25274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1554140101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1554140171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777070050 + 777070051.

It is an arithmetic number, because the mean of its divisors is an integer number (777070051).

Almost surely, 2^1554140101 is an apocalyptic number.

It is an amenable number.

1554140101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1554140101 is an equidigital number, since it uses as much as digits as its factorization.

1554140101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1554140101 is about 39422.5836418670. The cubic root of 1554140101 is about 1158.3240018065.

Adding to 1554140101 its reverse (1010414551), we get a palindrome (2564554652).

The spelling of 1554140101 in words is "one billion, five hundred fifty-four million, one hundred forty thousand, one hundred one".