1261948606 has 8 divisors (see below), whose sum is σ = 1936944504. Its totient is φ = 616300440.

The previous prime is 1261948577. The next prime is 1261948609. The reversal of 1261948606 is 6068491621.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261948609) 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, 7336825 + ... + 7336996.

It is an arithmetic number, because the mean of its divisors is an integer number (242118063).

Almost surely, 2^1261948606 is an apocalyptic number.

1261948606 is a deficient number, since it is larger than the sum of its proper divisors (674995898).

1261948606 is a wasteful number, since it uses less digits than its factorization.

1261948606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14673866.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1261948606 is about 35523.9159722010. The cubic root of 1261948606 is about 1080.6387984721.

The spelling of 1261948606 in words is "one billion, two hundred sixty-one million, nine hundred forty-eight thousand, six hundred six".