120631415 has 4 divisors (see below), whose sum is σ = 144757704. Its totient is φ = 96505128.

The previous prime is 120631403. The next prime is 120631417. The reversal of 120631415 is 514136021.

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

It is a cyclic number.

It is not a de Polignac number, because 120631415 - 2⁶ = 120631351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120631417) 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, 12063137 + ... + 12063146.

It is an arithmetic number, because the mean of its divisors is an integer number (36189426).

Almost surely, 2^120631415 is an apocalyptic number.

120631415 is a deficient number, since it is larger than the sum of its proper divisors (24126289).

120631415 is an equidigital number, since it uses as much as digits as its factorization.

120631415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24126288.

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

The square root of 120631415 is about 10983.2333581692. The cubic root of 120631415 is about 494.1060148808.

Adding to 120631415 its reverse (514136021), we get a palindrome (634767436).

The spelling of 120631415 in words is "one hundred twenty million, six hundred thirty-one thousand, four hundred fifteen".