122537378 has 8 divisors (see below), whose sum is σ = 187274268. Its totient is φ = 60112624.

The previous prime is 122537351. The next prime is 122537423. The reversal of 122537378 is 873735221.

It can be written as a sum of positive squares in 2 ways, for example, as 121066009 + 1471369 = 11003^2 + 1213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×122537378² = 30030818014229768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577901 + ... + 578112.

Almost surely, 2^122537378 is an apocalyptic number.

122537378 is a deficient number, since it is larger than the sum of its proper divisors (64736890).

122537378 is a wasteful number, since it uses less digits than its factorization.

122537378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156068.

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

The square root of 122537378 is about 11069.6602477221. The cubic root of 122537378 is about 496.6947021595.

The spelling of 122537378 in words is "one hundred twenty-two million, five hundred thirty-seven thousand, three hundred seventy-eight".