1149778102 has 16 divisors (see below), whose sum is σ = 1992129552. Its totient is φ = 491883520.

The previous prime is 1149778079. The next prime is 1149778177. The reversal of 1149778102 is 2018779411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536763 + ... + 1537510.

It is an arithmetic number, because the mean of its divisors is an integer number (124508097).

Almost surely, 2^1149778102 is an apocalyptic number.

1149778102 is a deficient number, since it is larger than the sum of its proper divisors (842351450).

1149778102 is a wasteful number, since it uses less digits than its factorization.

1149778102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074303.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1149778102 is about 33908.3780502695. The cubic root of 1149778102 is about 1047.6221632671.

The spelling of 1149778102 in words is "one billion, one hundred forty-nine million, seven hundred seventy-eight thousand, one hundred two".