1451413521 has 24 divisors (see below), whose sum is σ = 2193790976. Its totient is φ = 923555520.

The previous prime is 1451413519. The next prime is 1451413543. The reversal of 1451413521 is 1253141541.

1451413521 is a `hidden beast` number, since 14 + 514 + 135 + 2 + 1 = 666.

It is not a de Polignac number, because 1451413521 - 2¹ = 1451413519 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1451413121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15265 + ... + 55998.

Almost surely, 2^1451413521 is an apocalyptic number.

It is an amenable number.

1451413521 is a deficient number, since it is larger than the sum of its proper divisors (742377455).

1451413521 is a wasteful number, since it uses less digits than its factorization.

1451413521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71373 (or 71370 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1451413521 is about 38097.4214481768. The cubic root of 1451413521 is about 1132.2188685685.

The spelling of 1451413521 in words is "one billion, four hundred fifty-one million, four hundred thirteen thousand, five hundred twenty-one".