49281145 has 8 divisors (see below), whose sum is σ = 60395904. Its totient is φ = 38585904.

The previous prime is 49281091. The next prime is 49281161. The reversal of 49281145 is 54118294.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49281145 - 2⁷ = 49281017 is a prime.

It is a super-2 number, since 2×49281145² = 4857262505022050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49281145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104619 + ... + 105088.

It is an arithmetic number, because the mean of its divisors is an integer number (7549488).

Almost surely, 2^49281145 is an apocalyptic number.

It is an amenable number.

49281145 is a deficient number, since it is larger than the sum of its proper divisors (11114759).

49281145 is a wasteful number, since it uses less digits than its factorization.

49281145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209759.

The product of its digits is 11520, while the sum is 34.

The square root of 49281145 is about 7020.0530624775. The cubic root of 49281145 is about 366.6290976200.

The spelling of 49281145 in words is "forty-nine million, two hundred eighty-one thousand, one hundred forty-five".