1248312061 has 8 divisors (see below), whose sum is σ = 1289136384. Its totient is φ = 1207522560.

The previous prime is 1248312053. The next prime is 1248312067. The reversal of 1248312061 is 1602138421.

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 1248312061 - 2³ = 1248312053 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 (1248312067) 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, 78030 + ... + 92656.

It is an arithmetic number, because the mean of its divisors is an integer number (161142048).

Almost surely, 2^1248312061 is an apocalyptic number.

It is an amenable number.

1248312061 is a deficient number, since it is larger than the sum of its proper divisors (40824323).

1248312061 is a wasteful number, since it uses less digits than its factorization.

1248312061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17411.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1248312061 is about 35331.4599330398. The cubic root of 1248312061 is about 1076.7322526905.

The spelling of 1248312061 in words is "one billion, two hundred forty-eight million, three hundred twelve thousand, sixty-one".