1451500020115 has 16 divisors (see below), whose sum is σ = 1801606113216. Its totient is φ = 1121879232000.

The previous prime is 1451500020049. The next prime is 1451500020133. The reversal of 1451500020115 is 5110200051541.

It is not a de Polignac number, because 1451500020115 - 2²⁷ = 1451365802387 is a prime.

It is a super-2 number, since 2×1451500020115² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1451500020115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34350186 + ... + 34392415.

It is an arithmetic number, because the mean of its divisors is an integer number (112600382076).

Almost surely, 2^{1451500020115} is an apocalyptic number.

1451500020115 is a deficient number, since it is larger than the sum of its proper divisors (350106093101).

1451500020115 is a wasteful number, since it uses less digits than its factorization.

1451500020115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68742750.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 1451500020115 its reverse (5110200051541), we get a palindrome (6561700071656).

The spelling of 1451500020115 in words is "one trillion, four hundred fifty-one billion, five hundred million, twenty thousand, one hundred fifteen".