48152981 has 4 divisors (see below), whose sum is σ = 48831264. Its totient is φ = 47474700.

The previous prime is 48152977. The next prime is 48152987. The reversal of 48152981 is 18925184.

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.

It is a cyclic number.

It is not a de Polignac number, because 48152981 - 2² = 48152977 is a prime.

It is a super-2 number, since 2×48152981² = 4637419158372722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48152987) 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, 339035 + ... + 339176.

It is an arithmetic number, because the mean of its divisors is an integer number (12207816).

Almost surely, 2^48152981 is an apocalyptic number.

It is an amenable number.

48152981 is a deficient number, since it is larger than the sum of its proper divisors (678283).

48152981 is an equidigital number, since it uses as much as digits as its factorization.

48152981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678282.

The product of its digits is 23040, while the sum is 38.

The square root of 48152981 is about 6939.2349001889. The cubic root of 48152981 is about 363.8097992955.

The spelling of 48152981 in words is "forty-eight million, one hundred fifty-two thousand, nine hundred eighty-one".