140001279 has 16 divisors (see below), whose sum is σ = 206509824. Its totient is φ = 83652800.

The previous prime is 140001233. The next prime is 140001287. The reversal of 140001279 is 972100041.

It is not a de Polignac number, because 140001279 - 2⁹ = 140000767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001209) 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, 27534 + ... + 32219.

It is an arithmetic number, because the mean of its divisors is an integer number (12906864).

Almost surely, 2^140001279 is an apocalyptic number.

140001279 is a deficient number, since it is larger than the sum of its proper divisors (66508545).

140001279 is a wasteful number, since it uses less digits than its factorization.

140001279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59838.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 140001279 is about 11832.2136136904. The cubic root of 140001279 is about 519.2509914184.

The spelling of 140001279 in words is "one hundred forty million, one thousand, two hundred seventy-nine".