372121413 has 4 divisors (see below), whose sum is σ = 496161888. Its totient is φ = 248080940.

The previous prime is 372121397. The next prime is 372121429. The reversal of 372121413 is 314121273.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314121273 = 3 ⋅104707091.

It is an interprime number because it is at equal distance from previous prime (372121397) and next prime (372121429).

It is a cyclic number.

It is not a de Polignac number, because 372121413 - 2⁴ = 372121397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (372129413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62020233 + ... + 62020238.

It is an arithmetic number, because the mean of its divisors is an integer number (124040472).

Almost surely, 2^372121413 is an apocalyptic number.

It is an amenable number.

372121413 is a deficient number, since it is larger than the sum of its proper divisors (124040475).

372121413 is a wasteful number, since it uses less digits than its factorization.

372121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124040474.

The product of its digits is 1008, while the sum is 24.

The square root of 372121413 is about 19290.4487506123. The cubic root of 372121413 is about 719.2748698712.

Adding to 372121413 its reverse (314121273), we get a palindrome (686242686).

The spelling of 372121413 in words is "three hundred seventy-two million, one hundred twenty-one thousand, four hundred thirteen".