140133537 has 16 divisors (see below), whose sum is σ = 211524480. Its totient is φ = 91658736.

The previous prime is 140133509. The next prime is 140133557. The reversal of 140133537 is 735331041.

It is not a de Polignac number, because 140133537 - 2¹¹ = 140131489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 140133537.

It is not an unprimeable number, because it can be changed into a prime (140133557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47533 + ... + 50394.

It is an arithmetic number, because the mean of its divisors is an integer number (13220280).

Almost surely, 2^140133537 is an apocalyptic number.

It is an amenable number.

140133537 is a deficient number, since it is larger than the sum of its proper divisors (71390943).

140133537 is an equidigital number, since it uses as much as digits as its factorization.

140133537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97989 (or 97983 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 140133537 is about 11837.8011894101. The cubic root of 140133537 is about 519.4144505998.

Adding to 140133537 its reverse (735331041), we get a palindrome (875464578).

The spelling of 140133537 in words is "one hundred forty million, one hundred thirty-three thousand, five hundred thirty-seven".