1448278061 has 4 divisors (see below), whose sum is σ = 1451420124. Its totient is φ = 1445136000.

The previous prime is 1448278033. The next prime is 1448278079. The reversal of 1448278061 is 1608728441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1608728441 = 25951 ⋅61991.

It can be written as a sum of positive squares in 2 ways, for example, as 396248836 + 1052029225 = 19906^2 + 32435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448278061 - 2¹⁰ = 1448277037 is a prime.

It is a super-3 number, since 3×1448278061³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448278031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570340 + ... + 1571261.

It is an arithmetic number, because the mean of its divisors is an integer number (362855031).

Almost surely, 2^1448278061 is an apocalyptic number.

It is an amenable number.

1448278061 is a deficient number, since it is larger than the sum of its proper divisors (3142063).

1448278061 is an equidigital number, since it uses as much as digits as its factorization.

1448278061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142062.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 1448278061 is about 38056.2486459188. The cubic root of 1448278061 is about 1131.4029774054.

The spelling of 1448278061 in words is "one billion, four hundred forty-eight million, two hundred seventy-eight thousand, sixty-one".