140526767161 has 27 divisors (see below), whose sum is σ = 157677918447. Its totient is φ = 125146266960.

The previous prime is 140526767159. The next prime is 140526767219. The reversal of 140526767161 is 161767625041.

The square root of 140526767161 is 374869.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 101305341225 + 39221425936 = 318285^2 + 198044^2 .

It is not a de Polignac number, because 140526767161 - 2¹ = 140526767159 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140526767131) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 218548306 + ... + 218548948.

Almost surely, 2^140526767161 is an apocalyptic number.

140526767161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140526767161 is the 374869-th square number.

140526767161 is the 187435-th centered octagonal number.

It is an amenable number.

140526767161 is a deficient number, since it is larger than the sum of its proper divisors (17151151286).

140526767161 is an frugal number, since it uses more digits than its factorization.

140526767161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 140526767161 in words is "one hundred forty billion, five hundred twenty-six million, seven hundred sixty-seven thousand, one hundred sixty-one".