135037619 has 4 divisors (see below), whose sum is σ = 135716400. Its totient is φ = 134358840.

The previous prime is 135037603. The next prime is 135037633. The reversal of 135037619 is 916730531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135037619 - 2⁴ = 135037603 is a prime.

It is a super-2 number, since 2×135037619² = 36470317090378322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135037649) 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, 339092 + ... + 339489.

It is an arithmetic number, because the mean of its divisors is an integer number (33929100).

Almost surely, 2^135037619 is an apocalyptic number.

135037619 is a deficient number, since it is larger than the sum of its proper divisors (678781).

135037619 is an equidigital number, since it uses as much as digits as its factorization.

135037619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678780.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 135037619 is about 11620.5687898657. The cubic root of 135037619 is about 513.0404296407.

The spelling of 135037619 in words is "one hundred thirty-five million, thirty-seven thousand, six hundred nineteen".