140508137 has 24 divisors (see below), whose sum is σ = 180800352. Its totient is φ = 107956800.

The previous prime is 140508131. The next prime is 140508139. The reversal of 140508137 is 731805041.

It is not a de Polignac number, because 140508137 - 2⁶ = 140508073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140508131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37562 + ... + 41132.

It is an arithmetic number, because the mean of its divisors is an integer number (7533348).

Almost surely, 2^140508137 is an apocalyptic number.

It is an amenable number.

140508137 is a deficient number, since it is larger than the sum of its proper divisors (40292215).

140508137 is a wasteful number, since it uses less digits than its factorization.

140508137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 140508137 is about 11853.6128247889. The cubic root of 140508137 is about 519.8768655683.

The spelling of 140508137 in words is "one hundred forty million, five hundred eight thousand, one hundred thirty-seven".