1250015002045 has 4 divisors (see below), whose sum is σ = 1500018002460. Its totient is φ = 1000012001632.

The previous prime is 1250015002037. The next prime is 1250015002099. The reversal of 1250015002045 is 5402005100521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 999972000196 + 250043001849 = 999986^2 + 500043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250015002045 - 2³ = 1250015002037 is a prime.

It is a super-2 number, since 2×1250015002045² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125001500200 + ... + 125001500209.

It is an arithmetic number, because the mean of its divisors is an integer number (375004500615).

Almost surely, 2^{1250015002045} is an apocalyptic number.

It is an amenable number.

1250015002045 is a deficient number, since it is larger than the sum of its proper divisors (250003000415).

1250015002045 is an equidigital number, since it uses as much as digits as its factorization.

1250015002045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250003000414.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 1250015002045 in words is "one trillion, two hundred fifty billion, fifteen million, two thousand, forty-five".