145152041 has 4 divisors (see below), whose sum is σ = 145177284. Its totient is φ = 145126800.

The previous prime is 145152037. The next prime is 145152043. The reversal of 145152041 is 140251541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65674816 + 79477225 = 8104^2 + 8915^2 .

It is a cyclic number.

It is not a de Polignac number, because 145152041 - 2² = 145152037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145151998 and 145152016.

It is not an unprimeable number, because it can be changed into a prime (145152043) 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, 671 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (36294321).

Almost surely, 2^145152041 is an apocalyptic number.

It is an amenable number.

145152041 is a deficient number, since it is larger than the sum of its proper divisors (25243).

145152041 is an equidigital number, since it uses as much as digits as its factorization.

145152041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25242.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 145152041 is about 12047.9060836313. The cubic root of 145152041 is about 525.5423462685.

The spelling of 145152041 in words is "one hundred forty-five million, one hundred fifty-two thousand, forty-one".