121606502 has 4 divisors (see below), whose sum is σ = 182409756. Its totient is φ = 60803250.

The previous prime is 121606501. The next prime is 121606523. The reversal of 121606502 is 205606121.

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

It is a super-3 number, since 3×121606502³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121606501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30401624 + ... + 30401627.

It is an arithmetic number, because the mean of its divisors is an integer number (45602439).

Almost surely, 2^121606502 is an apocalyptic number.

121606502 is a deficient number, since it is larger than the sum of its proper divisors (60803254).

121606502 is an equidigital number, since it uses as much as digits as its factorization.

121606502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60803253.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121606502 is about 11027.5338131424. The cubic root of 121606502 is about 495.4337618836.

The spelling of 121606502 in words is "one hundred twenty-one million, six hundred six thousand, five hundred two".