140133420 has 72 divisors (see below), whose sum is σ = 485800224. Its totient is φ = 32030208.

The previous prime is 140133419. The next prime is 140133421. The reversal of 140133420 is 24331041.

It is an interprime number because it is at equal distance from previous prime (140133419) and next prime (140133421).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140133393 and 140133402.

It is not an unprimeable number, because it can be changed into a prime (140133421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54349 + ... + 56868.

Almost surely, 2^140133420 is an apocalyptic number.

140133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140133420 is an abundant number, since it is smaller than the sum of its proper divisors (345666804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140133420 is a wasteful number, since it uses less digits than its factorization.

140133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111239 (or 111234 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140133420 is about 11837.7962476130. The cubic root of 140133420 is about 519.4143060436.

Adding to 140133420 its reverse (24331041), we get a palindrome (164464461).

The spelling of 140133420 in words is "one hundred forty million, one hundred thirty-three thousand, four hundred twenty".