122773513 has 4 divisors (see below), whose sum is σ = 124854480. Its totient is φ = 120692548.

The previous prime is 122773499. The next prime is 122773523. The reversal of 122773513 is 315377221.

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: 315377221 = 109 ⋅2893369.

It is a cyclic number.

It is not a de Polignac number, because 122773513 - 2¹⁷ = 122642441 is a prime.

It is a super-2 number, since 2×122773513² = 30146670988722338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122773523) 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, 1040395 + ... + 1040512.

It is an arithmetic number, because the mean of its divisors is an integer number (31213620).

Almost surely, 2^122773513 is an apocalyptic number.

It is an amenable number.

122773513 is a deficient number, since it is larger than the sum of its proper divisors (2080967).

122773513 is an equidigital number, since it uses as much as digits as its factorization.

122773513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080966.

The product of its digits is 8820, while the sum is 31.

The square root of 122773513 is about 11080.3209791053. The cubic root of 122773513 is about 497.0135483947.

The spelling of 122773513 in words is "one hundred twenty-two million, seven hundred seventy-three thousand, five hundred thirteen".