121152445 has 4 divisors (see below), whose sum is σ = 145382940. Its totient is φ = 96921952.

The previous prime is 121152403. The next prime is 121152461. The reversal of 121152445 is 544251121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46744569 + 74407876 = 6837^2 + 8626^2 .

It is a cyclic number.

It is not a de Polignac number, because 121152445 - 2¹¹ = 121150397 is a prime.

It is a congruent 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, 12115240 + ... + 12115249.

It is an arithmetic number, because the mean of its divisors is an integer number (36345735).

Almost surely, 2^121152445 is an apocalyptic number.

It is an amenable number.

121152445 is a deficient number, since it is larger than the sum of its proper divisors (24230495).

121152445 is an equidigital number, since it uses as much as digits as its factorization.

121152445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24230494.

The product of its digits is 1600, while the sum is 25.

The square root of 121152445 is about 11006.9271370351. The cubic root of 121152445 is about 494.8163723883.

The spelling of 121152445 in words is "one hundred twenty-one million, one hundred fifty-two thousand, four hundred forty-five".