140453437 has 8 divisors (see below), whose sum is σ = 146779776. Its totient is φ = 134266272.

The previous prime is 140453431. The next prime is 140453449. The reversal of 140453437 is 734354041.

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 140453437 - 2¹⁹ = 139929149 is a prime.

It is a super-2 number, since 2×140453437² = 39454335930225938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140453399 and 140453408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140453431) 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, 32728 + ... + 36769.

It is an arithmetic number, because the mean of its divisors is an integer number (18347472).

Almost surely, 2^140453437 is an apocalyptic number.

It is an amenable number.

140453437 is a deficient number, since it is larger than the sum of its proper divisors (6326339).

140453437 is an equidigital number, since it uses as much as digits as its factorization.

140453437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69587.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 140453437 is about 11851.3052867606. The cubic root of 140453437 is about 519.8093938992.

The spelling of 140453437 in words is "one hundred forty million, four hundred fifty-three thousand, four hundred thirty-seven".