1520001451 has 2 divisors, whose sum is σ = 1520001452. Its totient is φ = 1520001450.

The previous prime is 1520001449. The next prime is 1520001481. The reversal of 1520001451 is 1541000251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1520001451 - 2¹ = 1520001449 is a prime.

It is a super-2 number, since 2×1520001451² = 4620808822084210802, which contains 22 as substring.

Together with 1520001449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1520001481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760000725 + 760000726.

It is an arithmetic number, because the mean of its divisors is an integer number (760000726).

Almost surely, 2^1520001451 is an apocalyptic number.

1520001451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520001451 is an equidigital number, since it uses as much as digits as its factorization.

1520001451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1520001451 is about 38987.1959879138. The cubic root of 1520001451 is about 1149.7797816507.

The spelling of 1520001451 in words is "one billion, five hundred twenty million, one thousand, four hundred fifty-one".