140550437 has 4 divisors (see below), whose sum is σ = 140658156. Its totient is φ = 140442720.

The previous prime is 140550427. The next prime is 140550463. The reversal of 140550437 is 734055041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734055041 = 4253 ⋅172597.

It can be written as a sum of positive squares in 2 ways, for example, as 136445761 + 4104676 = 11681^2 + 2026^2 .

It is a cyclic number.

It is not a de Polignac number, because 140550437 - 2⁸ = 140550181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140550427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51878 + ... + 54519.

It is an arithmetic number, because the mean of its divisors is an integer number (35164539).

Almost surely, 2^140550437 is an apocalyptic number.

It is an amenable number.

140550437 is a deficient number, since it is larger than the sum of its proper divisors (107719).

140550437 is a wasteful number, since it uses less digits than its factorization.

140550437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107718.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 140550437 is about 11855.3969566607. The cubic root of 140550437 is about 519.9290300087.

The spelling of 140550437 in words is "one hundred forty million, five hundred fifty thousand, four hundred thirty-seven".