48151421 has 4 divisors (see below), whose sum is σ = 48165600. Its totient is φ = 48137244.

The previous prime is 48151417. The next prime is 48151423. The reversal of 48151421 is 12415184.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 48151421 - 2² = 48151417 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 (48151423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (12041400).

Almost surely, 2^48151421 is an apocalyptic number.

It is an amenable number.

48151421 is a deficient number, since it is larger than the sum of its proper divisors (14179).

48151421 is an equidigital number, since it uses as much as digits as its factorization.

48151421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14178.

The product of its digits is 1280, while the sum is 26.

The square root of 48151421 is about 6939.1224949557. The cubic root of 48151421 is about 363.8058705015.

The spelling of 48151421 in words is "forty-eight million, one hundred fifty-one thousand, four hundred twenty-one".