1451171745145 has 32 divisors (see below), whose sum is σ = 1843677158400. Its totient is φ = 1094822985984.

The previous prime is 1451171745139. The next prime is 1451171745151. The reversal of 1451171745145 is 5415471711541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1451171745139) and next prime (1451171745151).

It is a cyclic number.

It is not a de Polignac number, because 1451171745145 - 2³ = 1451171745137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1451171745095 and 1451171745104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290366 + ... + 2137144.

It is an arithmetic number, because the mean of its divisors is an integer number (57614911200).

Almost surely, 2^{1451171745145} is an apocalyptic number.

It is an amenable number.

1451171745145 is a deficient number, since it is larger than the sum of its proper divisors (392505413255).

1451171745145 is a wasteful number, since it uses less digits than its factorization.

1451171745145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847089.

The product of its digits is 392000, while the sum is 46.

The spelling of 1451171745145 in words is "one trillion, four hundred fifty-one billion, one hundred seventy-one million, seven hundred forty-five thousand, one hundred forty-five".