1201495614138 has 12 divisors (see below), whose sum is σ = 2603240497338. Its totient is φ = 400498538040.

The previous prime is 1201495614113. The next prime is 1201495614173. The reversal of 1201495614138 is 8314165941021.

1201495614138 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 49 + 561 + 41 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 869308222689 + 332187391449 = 932367^2 + 576357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201495614093 and 1201495614102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33374878153 + ... + 33374878188.

Almost surely, 2^{1201495614138} is an apocalyptic number.

1201495614138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1201495614138 is an abundant number, since it is smaller than the sum of its proper divisors (1401744883200).

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

1201495614138 is a wasteful number, since it uses less digits than its factorization.

1201495614138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66749756349 (or 66749756346 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 1201495614138 in words is "one trillion, two hundred one billion, four hundred ninety-five million, six hundred fourteen thousand, one hundred thirty-eight".