1055740155 has 8 divisors (see below), whose sum is σ = 1689184272. Its totient is φ = 563061408.

The previous prime is 1055740117. The next prime is 1055740177. The reversal of 1055740155 is 5510475501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055740155 - 2⁷ = 1055740027 is a prime.

It is a super-2 number, since 2×1055740155² = 2229174549758848050, which contains 22 as substring.

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, 35191324 + ... + 35191353.

It is an arithmetic number, because the mean of its divisors is an integer number (211148034).

Almost surely, 2^1055740155 is an apocalyptic number.

1055740155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055740155 is a deficient number, since it is larger than the sum of its proper divisors (633444117).

1055740155 is an equidigital number, since it uses as much as digits as its factorization.

1055740155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70382685.

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 1055740155 is about 32492.1552840066. The cubic root of 1055740155 is about 1018.2451419493.

The spelling of 1055740155 in words is "one billion, fifty-five million, seven hundred forty thousand, one hundred fifty-five".