133900357 has 4 divisors (see below), whose sum is σ = 133978240. Its totient is φ = 133822476.

The previous prime is 133900303. The next prime is 133900363. The reversal of 133900357 is 753009331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133900357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133900057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36303 + ... + 39820.

It is an arithmetic number, because the mean of its divisors is an integer number (33494560).

Almost surely, 2^133900357 is an apocalyptic number.

It is an amenable number.

133900357 is a deficient number, since it is larger than the sum of its proper divisors (77883).

133900357 is an equidigital number, since it uses as much as digits as its factorization.

133900357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77882.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 133900357 is about 11571.5321803122. The cubic root of 133900357 is about 511.5961234019.

Adding to 133900357 its reverse (753009331), we get a palindrome (886909688).

The spelling of 133900357 in words is "one hundred thirty-three million, nine hundred thousand, three hundred fifty-seven".