145148937 has 4 divisors (see below), whose sum is σ = 193531920. Its totient is φ = 96765956.

The previous prime is 145148881. The next prime is 145148947. The reversal of 145148937 is 739841541.

It is a happy number.

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 145148937 - 2¹¹ = 145146889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145148947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24191487 + ... + 24191492.

It is an arithmetic number, because the mean of its divisors is an integer number (48382980).

Almost surely, 2^145148937 is an apocalyptic number.

It is an amenable number.

145148937 is a deficient number, since it is larger than the sum of its proper divisors (48382983).

145148937 is an equidigital number, since it uses as much as digits as its factorization.

145148937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48382982.

The product of its digits is 120960, while the sum is 42.

The square root of 145148937 is about 12047.7772638773. Note that the first 3 decimals coincide. The cubic root of 145148937 is about 525.5386000930.

The spelling of 145148937 in words is "one hundred forty-five million, one hundred forty-eight thousand, nine hundred thirty-seven".