1255621084 has 12 divisors (see below), whose sum is σ = 2228285808. Its totient is φ = 618968000.

The previous prime is 1255621069. The next prime is 1255621093. The reversal of 1255621084 is 4801265521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210317 + ... + 2210884.

It is an arithmetic number, because the mean of its divisors is an integer number (185690484).

Almost surely, 2^1255621084 is an apocalyptic number.

It is an amenable number.

1255621084 is a deficient number, since it is larger than the sum of its proper divisors (972664724).

1255621084 is a wasteful number, since it uses less digits than its factorization.

1255621084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421276 (or 4421274 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 1255621084 is about 35434.7440233452. The cubic root of 1255621084 is about 1078.8296317944.

The spelling of 1255621084 in words is "one billion, two hundred fifty-five million, six hundred twenty-one thousand, eighty-four".