133883397 has 12 divisors (see below), whose sum is σ = 193568544. Its totient is φ = 89171880.

The previous prime is 133883383. The next prime is 133883411. The reversal of 133883397 is 793388331.

It is an interprime number because it is at equal distance from previous prime (133883383) and next prime (133883411).

It is not a de Polignac number, because 133883397 - 2⁶ = 133883333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133883597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4072 + ... + 16862.

It is an arithmetic number, because the mean of its divisors is an integer number (16130712).

Almost surely, 2^133883397 is an apocalyptic number.

It is an amenable number.

133883397 is a deficient number, since it is larger than the sum of its proper divisors (59685147).

133883397 is a wasteful number, since it uses less digits than its factorization.

133883397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13960 (or 13957 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 133883397 is about 11570.7993241608. The cubic root of 133883397 is about 511.5745226713.

The spelling of 133883397 in words is "one hundred thirty-three million, eight hundred eighty-three thousand, three hundred ninety-seven".