140161293 has 16 divisors (see below), whose sum is σ = 207846400. Its totient is φ = 93350880.

The previous prime is 140161249. The next prime is 140161303. The reversal of 140161293 is 392161041.

140161293 is a `hidden beast` number, since 1 + 40 + 1 + 612 + 9 + 3 = 666.

It is not a de Polignac number, because 140161293 - 2¹⁴ = 140144909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140161093) 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, 37953 + ... + 41481.

It is an arithmetic number, because the mean of its divisors is an integer number (12990400).

Almost surely, 2^140161293 is an apocalyptic number.

It is an amenable number.

140161293 is a deficient number, since it is larger than the sum of its proper divisors (67685107).

140161293 is a wasteful number, since it uses less digits than its factorization.

140161293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 140161293 is about 11838.9734774599. The cubic root of 140161293 is about 519.4487415008.

The spelling of 140161293 in words is "one hundred forty million, one hundred sixty-one thousand, two hundred ninety-three".