133469377 has 4 divisors (see below), whose sum is σ = 136573360. Its totient is φ = 130365396.

The previous prime is 133469351. The next prime is 133469393. The reversal of 133469377 is 773964331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 773964331 = 7 ⋅110566333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133469377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 3103939 = 133469377 / (1 + 3 + 3 + 4 + 6 + 9 + 3 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133463377) 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, 1551927 + ... + 1552012.

It is an arithmetic number, because the mean of its divisors is an integer number (34143340).

Almost surely, 2^133469377 is an apocalyptic number.

It is an amenable number.

133469377 is a deficient number, since it is larger than the sum of its proper divisors (3103983).

133469377 is an equidigital number, since it uses as much as digits as its factorization.

133469377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103982.

The product of its digits is 285768, while the sum is 43.

The square root of 133469377 is about 11552.8947454740. The cubic root of 133469377 is about 511.0466484426.

The spelling of 133469377 in words is "one hundred thirty-three million, four hundred sixty-nine thousand, three hundred seventy-seven".