1554054381 has 24 divisors (see below), whose sum is σ = 2452981440. Its totient is φ = 940248000.

The previous prime is 1554054379. The next prime is 1554054391. The reversal of 1554054381 is 1834504551.

It is not a de Polignac number, because 1554054381 - 2¹ = 1554054379 is a prime.

It is a super-2 number, since 2×1554054381² = 4830170038210586322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554054391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46440 + ... + 72558.

It is an arithmetic number, because the mean of its divisors is an integer number (102207560).

Almost surely, 2^1554054381 is an apocalyptic number.

1554054381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1554054381 is a deficient number, since it is larger than the sum of its proper divisors (898927059).

1554054381 is a wasteful number, since it uses less digits than its factorization.

1554054381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26737 (or 26734 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 1554054381 is about 39421.4964327840. The cubic root of 1554054381 is about 1158.3027052797.

The spelling of 1554054381 in words is "one billion, five hundred fifty-four million, fifty-four thousand, three hundred eighty-one".