1554423541 has 4 divisors (see below), whose sum is σ = 1695734784. Its totient is φ = 1413112300.

The previous prime is 1554423491. The next prime is 1554423551. The reversal of 1554423541 is 1453244551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1453244551 = 11 ⋅132113141.

It is a cyclic number.

It is not a de Polignac number, because 1554423541 - 2²³ = 1546034933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1554423497 and 1554423506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554423551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70655605 + ... + 70655626.

It is an arithmetic number, because the mean of its divisors is an integer number (423933696).

Almost surely, 2^1554423541 is an apocalyptic number.

1554423541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1554423541 is a deficient number, since it is larger than the sum of its proper divisors (141311243).

1554423541 is a wasteful number, since it uses less digits than its factorization.

1554423541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141311242.

The product of its digits is 48000, while the sum is 34.

The square root of 1554423541 is about 39426.1783717367. The cubic root of 1554423541 is about 1158.3944148917.

The spelling of 1554423541 in words is "one billion, five hundred fifty-four million, four hundred twenty-three thousand, five hundred forty-one".