140293137 has 16 divisors (see below), whose sum is σ = 190762880. Its totient is φ = 91694592.

The previous prime is 140293121. The next prime is 140293147. The reversal of 140293137 is 731392041.

It is not a de Polignac number, because 140293137 - 2⁴ = 140293121 is a prime.

It is a super-4 number, since 4×140293137⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140293147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29508 + ... + 33930.

It is an arithmetic number, because the mean of its divisors is an integer number (11922680).

Almost surely, 2^140293137 is an apocalyptic number.

It is an amenable number.

140293137 is a deficient number, since it is larger than the sum of its proper divisors (50469743).

140293137 is a wasteful number, since it uses less digits than its factorization.

140293137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 140293137 is about 11844.5403878749. The cubic root of 140293137 is about 519.6115651915.

The spelling of 140293137 in words is "one hundred forty million, two hundred ninety-three thousand, one hundred thirty-seven".