133100040 has 32 divisors (see below), whose sum is σ = 399300480. Its totient is φ = 35493312.

The previous prime is 133100039. The next prime is 133100041. The reversal of 133100040 is 40001331.

It is an interprime number because it is at equal distance from previous prime (133100039) and next prime (133100041).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 133099989 and 133100025.

It is not an unprimeable number, because it can be changed into a prime (133100041) 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, 554464 + ... + 554703.

It is an arithmetic number, because the mean of its divisors is an integer number (12478140).

Almost surely, 2^133100040 is an apocalyptic number.

133100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133100040 is an abundant number, since it is smaller than the sum of its proper divisors (266200440).

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

133100040 is a wasteful number, since it uses less digits than its factorization.

133100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109181 (or 1109177 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 133100040 is about 11536.8990634399. The cubic root of 133100040 is about 510.5748228444.

Adding to 133100040 its reverse (40001331), we get a palindrome (173101371).

The spelling of 133100040 in words is "one hundred thirty-three million, one hundred thousand, forty".