1054491893 has 16 divisors (see below), whose sum is σ = 1305534720. Its totient is φ = 834311088.

The previous prime is 1054491883. The next prime is 1054491899. The reversal of 1054491893 is 3981944501.

It is not a de Polignac number, because 1054491893 - 2⁶ = 1054491829 is a prime.

It is a super-2 number, since 2×1054491893² = 2223906304805446898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054491899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18905 + ... + 49662.

It is an arithmetic number, because the mean of its divisors is an integer number (81595920).

Almost surely, 2^1054491893 is an apocalyptic number.

1054491893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1054491893 is a deficient number, since it is larger than the sum of its proper divisors (251042827).

1054491893 is an frugal number, since it uses more digits than its factorization.

1054491893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68613 (or 68587 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1054491893 is about 32472.9409354927. The cubic root of 1054491893 is about 1017.8436738480.

The spelling of 1054491893 in words is "one billion, fifty-four million, four hundred ninety-one thousand, eight hundred ninety-three".