121252646 has 4 divisors (see below), whose sum is σ = 181878972. Its totient is φ = 60626322.

The previous prime is 121252633. The next prime is 121252667. The reversal of 121252646 is 646252121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646252121 = 97 ⋅6662393.

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, 30313160 + ... + 30313163.

It is an arithmetic number, because the mean of its divisors is an integer number (45469743).

Almost surely, 2^121252646 is an apocalyptic number.

121252646 is a deficient number, since it is larger than the sum of its proper divisors (60626326).

121252646 is an equidigital number, since it uses as much as digits as its factorization.

121252646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60626325.

The product of its digits is 5760, while the sum is 29.

The square root of 121252646 is about 11011.4779207879. The cubic root of 121252646 is about 494.9527499707.

The spelling of 121252646 in words is "one hundred twenty-one million, two hundred fifty-two thousand, six hundred forty-six".