145048237 has 4 divisors (see below), whose sum is σ = 146403936. Its totient is φ = 143692540.

The previous prime is 145048231. The next prime is 145048247. The reversal of 145048237 is 732840541.

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 145048237 - 2¹¹ = 145046189 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 (145048231) 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, 677689 + ... + 677902.

It is an arithmetic number, because the mean of its divisors is an integer number (36600984).

Almost surely, 2^145048237 is an apocalyptic number.

It is an amenable number.

145048237 is a deficient number, since it is larger than the sum of its proper divisors (1355699).

145048237 is a wasteful number, since it uses less digits than its factorization.

145048237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355698.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 145048237 is about 12043.5973446475. The cubic root of 145048237 is about 525.4170376452.

Adding to 145048237 its reverse (732840541), we get a palindrome (877888778).

The spelling of 145048237 in words is "one hundred forty-five million, forty-eight thousand, two hundred thirty-seven".