1054178159 has 32 divisors (see below), whose sum is σ = 1206835200. Its totient is φ = 915425280.

The previous prime is 1054178123. The next prime is 1054178161. The reversal of 1054178159 is 9518714501.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054178159 is a prime.

It is a super-2 number, since 2×1054178159² = 2222583181825258562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054178179) 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, 2445674 + ... + 2446104.

It is an arithmetic number, because the mean of its divisors is an integer number (37713600).

Almost surely, 2^1054178159 is an apocalyptic number.

1054178159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1054178159 is a deficient number, since it is larger than the sum of its proper divisors (152657041).

1054178159 is a wasteful number, since it uses less digits than its factorization.

1054178159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 50400, while the sum is 41.

The square root of 1054178159 is about 32468.1098772318. The cubic root of 1054178159 is about 1017.7427203797.

The spelling of 1054178159 in words is "one billion, fifty-four million, one hundred seventy-eight thousand, one hundred fifty-nine".