145438037 has 4 divisors (see below), whose sum is σ = 146250720. Its totient is φ = 144625356.

The previous prime is 145438031. The next prime is 145438057. The reversal of 145438037 is 730834541.

145438037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 730834541 = 23371 ⋅31271.

It is a cyclic number.

It is not a de Polignac number, because 145438037 - 2⁴ = 145438021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145437988 and 145438006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145438031) 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, 406073 + ... + 406430.

It is an arithmetic number, because the mean of its divisors is an integer number (36562680).

Almost surely, 2^145438037 is an apocalyptic number.

It is an amenable number.

145438037 is a deficient number, since it is larger than the sum of its proper divisors (812683).

145438037 is an equidigital number, since it uses as much as digits as its factorization.

145438037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812682.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 145438037 is about 12059.7693593203. The cubic root of 145438037 is about 525.8872820585.

The spelling of 145438037 in words is "one hundred forty-five million, four hundred thirty-eight thousand, thirty-seven".