127135261494 has 24 divisors (see below), whose sum is σ = 275469088440. Its totient is φ = 42376981248.

The previous prime is 127135261489. The next prime is 127135261499. The reversal of 127135261494 is 494162531721.

127135261494 is a `hidden beast` number, since 1 + 2 + 7 + 135 + 26 + 1 + 494 = 666.

It is an interprime number because it is at equal distance from previous prime (127135261489) and next prime (127135261499).

It is a super-2 number, since 2×127135261494² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127135261499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515889 + ... + 721395.

It is an arithmetic number, because the mean of its divisors is an integer number (11477878685).

Almost surely, 2^127135261494 is an apocalyptic number.

127135261494 is an abundant number, since it is smaller than the sum of its proper divisors (148333826946).

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

127135261494 is a wasteful number, since it uses less digits than its factorization.

127135261494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239884 (or 239881 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 127135261494 in words is "one hundred twenty-seven billion, one hundred thirty-five million, two hundred sixty-one thousand, four hundred ninety-four".