134780357 has 4 divisors (see below), whose sum is σ = 141874080. Its totient is φ = 127686636.

The previous prime is 134780351. The next prime is 134780389. The reversal of 134780357 is 753087431.

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: 753087431 = 109 ⋅6909059.

It is a cyclic number.

It is not a de Polignac number, because 134780357 - 2¹⁴ = 134763973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134780357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134780351) 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, 3546833 + ... + 3546870.

It is an arithmetic number, because the mean of its divisors is an integer number (35468520).

Almost surely, 2^134780357 is an apocalyptic number.

It is an amenable number.

134780357 is a deficient number, since it is larger than the sum of its proper divisors (7093723).

134780357 is an equidigital number, since it uses as much as digits as its factorization.

134780357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7093722.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 134780357 is about 11609.4942611640. The cubic root of 134780357 is about 512.7144224318.

The spelling of 134780357 in words is "one hundred thirty-four million, seven hundred eighty thousand, three hundred fifty-seven".