122135019 has 4 divisors (see below), whose sum is σ = 162846696. Its totient is φ = 81423344.

The previous prime is 122135003. The next prime is 122135051. The reversal of 122135019 is 910531221.

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 122135019 - 2⁴ = 122135003 is a prime.

It is a super-2 number, since 2×122135019² = 29833925732260722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122135019.

It is not an unprimeable number, because it can be changed into a prime (122135219) 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, 20355834 + ... + 20355839.

It is an arithmetic number, because the mean of its divisors is an integer number (40711674).

Almost surely, 2^122135019 is an apocalyptic number.

122135019 is a deficient number, since it is larger than the sum of its proper divisors (40711677).

122135019 is an equidigital number, since it uses as much as digits as its factorization.

122135019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40711676.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 122135019 is about 11051.4713500058. The cubic root of 122135019 is about 496.1504635327.

The spelling of 122135019 in words is "one hundred twenty-two million, one hundred thirty-five thousand, nineteen".