1012055646 has 16 divisors (see below), whose sum is σ = 2313270144. Its totient is φ = 289158744.

The previous prime is 1012055623. The next prime is 1012055647. The reversal of 1012055646 is 6465502101.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012055647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12048240 + ... + 12048323.

It is an arithmetic number, because the mean of its divisors is an integer number (144579384).

Almost surely, 2^1012055646 is an apocalyptic number.

1012055646 is an abundant number, since it is smaller than the sum of its proper divisors (1301214498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012055646 is a wasteful number, since it uses less digits than its factorization.

1012055646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24096575.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1012055646 is about 31812.8220376627. The cubic root of 1012055646 is about 1004.0025072291.

Adding to 1012055646 its reverse (6465502101), we get a palindrome (7477557747).

The spelling of 1012055646 in words is "one billion, twelve million, fifty-five thousand, six hundred forty-six".