1261414616 has 64 divisors (see below), whose sum is σ = 2967770880. Its totient is φ = 488292480.

The previous prime is 1261414607. The next prime is 1261414621. The reversal of 1261414616 is 6164141621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90191 + ... + 103233.

It is an arithmetic number, because the mean of its divisors is an integer number (46371420).

Almost surely, 2^1261414616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261414616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483885440).

1261414616 is an abundant number, since it is smaller than the sum of its proper divisors (1706356264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261414616 is a wasteful number, since it uses less digits than its factorization.

1261414616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224 (or 13220 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1261414616 is about 35516.3992544289. The cubic root of 1261414616 is about 1080.4863538795.

The spelling of 1261414616 in words is "one billion, two hundred sixty-one million, four hundred fourteen thousand, six hundred sixteen".