194697001131 has 16 divisors (see below), whose sum is σ = 262110081024. Its totient is φ = 128544633504.

The previous prime is 194697001123. The next prime is 194697001139. The reversal of 194697001131 is 131100796491.

It is an interprime number because it is at equal distance from previous prime (194697001123) and next prime (194697001139).

It is not a de Polignac number, because 194697001131 - 2³ = 194697001123 is a prime.

It is a super-2 number, since 2×194697001131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194697001139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246505 + ... + 670938.

It is an arithmetic number, because the mean of its divisors is an integer number (16381880064).

Almost surely, 2^194697001131 is an apocalyptic number.

194697001131 is a deficient number, since it is larger than the sum of its proper divisors (67413079893).

194697001131 is a wasteful number, since it uses less digits than its factorization.

194697001131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918130.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 194697001131 in words is "one hundred ninety-four billion, six hundred ninety-seven million, one thousand, one hundred thirty-one".