1055239145 has 8 divisors (see below), whose sum is σ = 1269938304. Its totient is φ = 841757104.

The previous prime is 1055239139. The next prime is 1055239177. The reversal of 1055239145 is 5419325501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055239145 - 2²⁶ = 988130281 is a prime.

It is a super-2 number, since 2×1055239145² = 2227059306280662050, which contains 22 as substring.

It is a Duffinian 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, 302369 + ... + 305838.

It is an arithmetic number, because the mean of its divisors is an integer number (158742288).

Almost surely, 2^1055239145 is an apocalyptic number.

It is an amenable number.

1055239145 is a deficient number, since it is larger than the sum of its proper divisors (214699159).

1055239145 is an equidigital number, since it uses as much as digits as its factorization.

1055239145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608559.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1055239145 is about 32484.4446620225. Note that the first 3 decimals coincide. The cubic root of 1055239145 is about 1018.0840443168.

The spelling of 1055239145 in words is "one billion, fifty-five million, two hundred thirty-nine thousand, one hundred forty-five".