2154256612 has 6 divisors (see below), whose sum is σ = 3769949078. Its totient is φ = 1077128304.

The previous prime is 2154256597. The next prime is 2154256627. The reversal of 2154256612 is 2166524512.

It is an interprime number because it is at equal distance from previous prime (2154256597) and next prime (2154256627).

It can be written as a sum of positive squares in only one way, i.e., 2132222976 + 22033636 = 46176^2 + 4694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269282073 + ... + 269282080.

Almost surely, 2^2154256612 is an apocalyptic number.

It is an amenable number.

2154256612 is a deficient number, since it is larger than the sum of its proper divisors (1615692466).

2154256612 is a wasteful number, since it uses less digits than its factorization.

2154256612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538564157 (or 538564155 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2154256612 is about 46413.9700090393. The cubic root of 2154256612 is about 1291.5140790426.

The spelling of 2154256612 in words is "two billion, one hundred fifty-four million, two hundred fifty-six thousand, six hundred twelve".