122491598 has 4 divisors (see below), whose sum is σ = 183737400. Its totient is φ = 61245798.

The previous prime is 122491529. The next prime is 122491601. The reversal of 122491598 is 895194221.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622898 + ... + 30622901.

It is an arithmetic number, because the mean of its divisors is an integer number (45934350).

Almost surely, 2^122491598 is an apocalyptic number.

122491598 is a deficient number, since it is larger than the sum of its proper divisors (61245802).

122491598 is an equidigital number, since it uses as much as digits as its factorization.

122491598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61245801.

The product of its digits is 51840, while the sum is 41.

The square root of 122491598 is about 11067.5922404107. The cubic root of 122491598 is about 496.6328393599.

The spelling of 122491598 in words is "one hundred twenty-two million, four hundred ninety-one thousand, five hundred ninety-eight".