1478748261 has 16 divisors (see below), whose sum is σ = 1998345600. Its totient is φ = 972542208.

The previous prime is 1478748241. The next prime is 1478748287. The reversal of 1478748261 is 1628478741.

It is not a de Polignac number, because 1478748261 - 2⁷ = 1478748133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1478748261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478748241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115960 + ... + 128078.

It is an arithmetic number, because the mean of its divisors is an integer number (124896600).

Almost surely, 2^1478748261 is an apocalyptic number.

It is an amenable number.

1478748261 is a deficient number, since it is larger than the sum of its proper divisors (519597339).

1478748261 is a wasteful number, since it uses less digits than its factorization.

1478748261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12668.

The product of its digits is 602112, while the sum is 48.

The square root of 1478748261 is about 38454.4959790139. The cubic root of 1478748261 is about 1139.2824716818.

The spelling of 1478748261 in words is "one billion, four hundred seventy-eight million, seven hundred forty-eight thousand, two hundred sixty-one".