140091213 has 8 divisors (see below), whose sum is σ = 191836768. Its totient is φ = 90869904.

The previous prime is 140091209. The next prime is 140091221. The reversal of 140091213 is 312190041.

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

It is not a de Polignac number, because 140091213 - 2² = 140091209 is a prime.

It is a super-2 number, since 2×140091213² = 39251095919622738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140091213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140091233) 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, 630931 + ... + 631152.

It is an arithmetic number, because the mean of its divisors is an integer number (23979596).

Almost surely, 2^140091213 is an apocalyptic number.

It is an amenable number.

140091213 is a deficient number, since it is larger than the sum of its proper divisors (51745555).

140091213 is a wasteful number, since it uses less digits than its factorization.

140091213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262123.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 140091213 is about 11836.0133913409. The cubic root of 140091213 is about 519.3621530764.

The spelling of 140091213 in words is "one hundred forty million, ninety-one thousand, two hundred thirteen".