1055145601 has 6 divisors (see below), whose sum is σ = 1113602802. Its totient is φ = 999611280.

The previous prime is 1055145587. The next prime is 1055145617. The reversal of 1055145601 is 1065415501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 606341376 + 448804225 = 24624^2 + 21185^2 .

It is not a de Polignac number, because 1055145601 - 2¹¹ = 1055143553 is a prime.

It is a super-2 number, since 2×1055145601² = 2226664478619302402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055145601.

It is not an unprimeable number, because it can be changed into a prime (1055145671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1461060 + ... + 1461781.

It is an arithmetic number, because the mean of its divisors is an integer number (185600467).

Almost surely, 2^1055145601 is an apocalyptic number.

It is an amenable number.

1055145601 is a deficient number, since it is larger than the sum of its proper divisors (58457201).

1055145601 is an equidigital number, since it uses as much as digits as its factorization.

1055145601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922879 (or 2922860 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1055145601 is about 32483.0048025117. The cubic root of 1055145601 is about 1018.0539599931.

The spelling of 1055145601 in words is "one billion, fifty-five million, one hundred forty-five thousand, six hundred one".