140772637 has 8 divisors (see below), whose sum is σ = 142023672. Its totient is φ = 139526400.

The previous prime is 140772613. The next prime is 140772677. The reversal of 140772637 is 736277041.

It can be written as a sum of positive squares in 4 ways, for example, as 12313081 + 128459556 = 3509^2 + 11334^2 .

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 140772637 - 2¹⁵ = 140739869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140772596 and 140772605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140772607) 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, 80937 + ... + 82657.

It is an arithmetic number, because the mean of its divisors is an integer number (17752959).

Almost surely, 2^140772637 is an apocalyptic number.

It is an amenable number.

140772637 is a deficient number, since it is larger than the sum of its proper divisors (1251035).

140772637 is a wasteful number, since it uses less digits than its factorization.

140772637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 140772637 is about 11864.7645151516. The cubic root of 140772637 is about 520.2028757203.

The spelling of 140772637 in words is "one hundred forty million, seven hundred seventy-two thousand, six hundred thirty-seven".