1451021512 has 8 divisors (see below), whose sum is σ = 2720665350. Its totient is φ = 725510752.

The previous prime is 1451021503. The next prime is 1451021527. The reversal of 1451021512 is 2151201541.

It can be written as a sum of positive squares in only one way, i.e., 1347917796 + 103103716 = 36714^2 + 10154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1451021512² = 4210926856573532288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90688837 + ... + 90688852.

Almost surely, 2^1451021512 is an apocalyptic number.

It is an amenable number.

1451021512 is a deficient number, since it is larger than the sum of its proper divisors (1269643838).

1451021512 is a wasteful number, since it uses less digits than its factorization.

1451021512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181377695 (or 181377691 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1451021512 is about 38092.2762774818. The cubic root of 1451021512 is about 1132.1169265777.

The spelling of 1451021512 in words is "one billion, four hundred fifty-one million, twenty-one thousand, five hundred twelve".