140154031 has 8 divisors (see below), whose sum is σ = 143728704. Its totient is φ = 136586880.

The previous prime is 140154029. The next prime is 140154073. The reversal of 140154031 is 130451041.

140154031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140154031 - 2¹ = 140154029 is a prime.

It is a super-2 number, since 2×140154031² = 39286304811097922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140154331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66906 + ... + 68968.

It is an arithmetic number, because the mean of its divisors is an integer number (17966088).

Almost surely, 2^140154031 is an apocalyptic number.

140154031 is a deficient number, since it is larger than the sum of its proper divisors (3574673).

140154031 is a wasteful number, since it uses less digits than its factorization.

140154031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140154031 is about 11838.6667745992. Note that the first 3 decimals coincide. The cubic root of 140154031 is about 519.4397701654.

The spelling of 140154031 in words is "one hundred forty million, one hundred fifty-four thousand, thirty-one".