140370490261 has 8 divisors (see below), whose sum is σ = 145336341248. Its totient is φ = 135432000000.

The previous prime is 140370490219. The next prime is 140370490313. The reversal of 140370490261 is 162094073041.

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

It is a 6-Lehmer number, since φ(140370490261) divides (140370490261-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 140370490261 - 2¹¹ = 140370488213 is a prime.

It is a super-2 number, since 2×140370490261² (a number of 23 digits) contains 22 as substring.

It is the 374661-st Hogben number.

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 140370490261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140370490201) by changing a digit.

It is a nontrivial repunit in base 374660.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6829740 + ... + 6850261.

It is an arithmetic number, because the mean of its divisors is an integer number (18167042656).

Almost surely, 2^140370490261 is an apocalyptic number.

It is an amenable number.

140370490261 is a deficient number, since it is larger than the sum of its proper divisors (4965850987).

140370490261 is a wasteful number, since it uses less digits than its factorization.

140370490261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13680363.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 140370490261 in words is "one hundred forty billion, three hundred seventy million, four hundred ninety thousand, two hundred sixty-one".