1125014145421 has 8 divisors (see below), whose sum is σ = 1141080467384. Its totient is φ = 1108965530880.

The previous prime is 1125014145419. The next prime is 1125014145427. The reversal of 1125014145421 is 1245414105211.

It can be written as a sum of positive squares in 4 ways, for example, as 4674456900 + 1120339688521 = 68370^2 + 1058461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125014145421 - 2¹ = 1125014145419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125014145427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298856 + ... + 4553041.

It is an arithmetic number, because the mean of its divisors is an integer number (142635058423).

Almost surely, 2^{1125014145421} is an apocalyptic number.

It is an amenable number.

1125014145421 is a deficient number, since it is larger than the sum of its proper divisors (16066321963).

1125014145421 is an equidigital number, since it uses as much as digits as its factorization.

1125014145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853711.

The product of its (nonzero) digits is 6400, while the sum is 31.

The spelling of 1125014145421 in words is "one trillion, one hundred twenty-five billion, fourteen million, one hundred forty-five thousand, four hundred twenty-one".