121613433 has 16 divisors (see below), whose sum is σ = 170963520. Its totient is φ = 76683456.

The previous prime is 121613431. The next prime is 121613441. The reversal of 121613433 is 334316121.

It is a happy number.

It is not a de Polignac number, because 121613433 - 2¹ = 121613431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121613431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44091 + ... + 46767.

It is an arithmetic number, because the mean of its divisors is an integer number (10685220).

Almost surely, 2^121613433 is an apocalyptic number.

It is an amenable number.

121613433 is a deficient number, since it is larger than the sum of its proper divisors (49350087).

121613433 is a wasteful number, since it uses less digits than its factorization.

121613433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496.

The product of its digits is 1296, while the sum is 24.

The square root of 121613433 is about 11027.8480675062. The cubic root of 121613433 is about 495.4431741713.

Adding to 121613433 its reverse (334316121), we get a palindrome (455929554).

The spelling of 121613433 in words is "one hundred twenty-one million, six hundred thirteen thousand, four hundred thirty-three".