1054205243 has 32 divisors (see below), whose sum is σ = 1360246272. Its totient is φ = 794707200.

The previous prime is 1054205239. The next prime is 1054205279. The reversal of 1054205243 is 3425024501.

It is a happy number.

It is not a de Polignac number, because 1054205243 - 2² = 1054205239 is a prime.

It is a super-2 number, since 2×1054205243² = 2222697388737378098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1054205143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157148 + ... + 163718.

It is an arithmetic number, because the mean of its divisors is an integer number (42507696).

Almost surely, 2^1054205243 is an apocalyptic number.

1054205243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1054205243 is a deficient number, since it is larger than the sum of its proper divisors (306041029).

1054205243 is a wasteful number, since it uses less digits than its factorization.

1054205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1054205243 is about 32468.5269607354. The cubic root of 1054205243 is about 1017.7514362713.

Adding to 1054205243 its reverse (3425024501), we get a palindrome (4479229744).

The spelling of 1054205243 in words is "one billion, fifty-four million, two hundred five thousand, two hundred forty-three".