133920453951 has 32 divisors (see below), whose sum is σ = 199972416000. Its totient is φ = 88574969664.

The previous prime is 133920453943. The next prime is 133920454027. The reversal of 133920453951 is 159354029331.

133920453951 is a `hidden beast` number, since 13 + 39 + 20 + 4 + 539 + 51 = 666.

It is not a de Polignac number, because 133920453951 - 2³ = 133920453943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133920453897 and 133920453906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133920453551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2477430 + ... + 2530908.

It is an arithmetic number, because the mean of its divisors is an integer number (6249138000).

Almost surely, 2^133920453951 is an apocalyptic number.

133920453951 is a deficient number, since it is larger than the sum of its proper divisors (66051962049).

133920453951 is a wasteful number, since it uses less digits than its factorization.

133920453951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54220 (or 54214 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 133920453951 in words is "one hundred thirty-three billion, nine hundred twenty million, four hundred fifty-three thousand, nine hundred fifty-one".