140602161 has 32 divisors (see below), whose sum is σ = 222582528. Its totient is φ = 77276160.

The previous prime is 140602157. The next prime is 140602177. The reversal of 140602161 is 161206041.

It is not a de Polignac number, because 140602161 - 2² = 140602157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (140602181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61735 + ... + 63971.

It is an arithmetic number, because the mean of its divisors is an integer number (6955704).

Almost surely, 2^140602161 is an apocalyptic number.

It is an amenable number.

140602161 is a deficient number, since it is larger than the sum of its proper divisors (81980367).

140602161 is a wasteful number, since it uses less digits than its factorization.

140602161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 140602161 is about 11857.5782097357. The cubic root of 140602161 is about 519.9928019221.

The spelling of 140602161 in words is "one hundred forty million, six hundred two thousand, one hundred sixty-one".