1056128854 has 16 divisors (see below), whose sum is σ = 1728709776. Its totient is φ = 479920000.

The previous prime is 1056128809. The next prime is 1056128861. The reversal of 1056128854 is 4588216501.

It is a happy number.

It is a super-2 number, since 2×1056128854² = 2230816312502706632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147354 + ... + 154354.

It is an arithmetic number, because the mean of its divisors is an integer number (108044361).

Almost surely, 2^1056128854 is an apocalyptic number.

1056128854 is a deficient number, since it is larger than the sum of its proper divisors (672580922).

1056128854 is a wasteful number, since it uses less digits than its factorization.

1056128854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13871.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1056128854 is about 32498.1361619401. The cubic root of 1056128854 is about 1018.3700913518.

The spelling of 1056128854 in words is "one billion, fifty-six million, one hundred twenty-eight thousand, eight hundred fifty-four".