1254765216 has 48 divisors (see below), whose sum is σ = 3335472000. Its totient is φ = 412958208.

The previous prime is 1254765203. The next prime is 1254765217. The reversal of 1254765216 is 6125674521.

It is a tau number, because it is divible by the number of its divisors (48).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1254765217) 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, 75141 + ... + 90308.

It is an arithmetic number, because the mean of its divisors is an integer number (69489000).

Almost surely, 2^1254765216 is an apocalyptic number.

1254765216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1254765216 is an abundant number, since it is smaller than the sum of its proper divisors (2080706784).

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

1254765216 is a wasteful number, since it uses less digits than its factorization.

1254765216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165541 (or 165533 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 1254765216 is about 35422.6652865083. The cubic root of 1254765216 is about 1078.5844554852.

The spelling of 1254765216 in words is "one billion, two hundred fifty-four million, seven hundred sixty-five thousand, two hundred sixteen".