122140465 has 16 divisors (see below), whose sum is σ = 157879296. Its totient is φ = 90446400.

The previous prime is 122140439. The next prime is 122140477. The reversal of 122140465 is 564041221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-122140465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13566 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (9867456).

Almost surely, 2^122140465 is an apocalyptic number.

It is an amenable number.

122140465 is a deficient number, since it is larger than the sum of its proper divisors (35738831).

122140465 is a wasteful number, since it uses less digits than its factorization.

122140465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34320.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 122140465 is about 11051.7177397905. The cubic root of 122140465 is about 496.1578378721.

Adding to 122140465 its reverse (564041221), we get a palindrome (686181686).

The spelling of 122140465 in words is "one hundred twenty-two million, one hundred forty thousand, four hundred sixty-five".