121337487 has 16 divisors (see below), whose sum is σ = 179998560. Its totient is φ = 80784000.

The previous prime is 121337473. The next prime is 121337497. The reversal of 121337487 is 784733121.

It is not a de Polignac number, because 121337487 - 2⁴ = 121337471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121337407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21237 + ... + 26337.

It is an arithmetic number, because the mean of its divisors is an integer number (11249910).

Almost surely, 2^121337487 is an apocalyptic number.

121337487 is a deficient number, since it is larger than the sum of its proper divisors (58661073).

121337487 is an equidigital number, since it uses as much as digits as its factorization.

121337487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991 (or 5985 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 121337487 is about 11015.3296364657. The cubic root of 121337487 is about 495.0681632487.

The spelling of 121337487 in words is "one hundred twenty-one million, three hundred thirty-seven thousand, four hundred eighty-seven".