145202501 has 8 divisors (see below), whose sum is σ = 147104664. Its totient is φ = 143308800.

The previous prime is 145202471. The next prime is 145202557. The reversal of 145202501 is 105202541.

145202501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 12050²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 65189476 + 80013025 = 8074^2 + 8945^2 .

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 145202501 - 2¹⁴ = 145186117 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 (145202581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37031 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (18388083).

Almost surely, 2^145202501 is an apocalyptic number.

It is an amenable number.

145202501 is a deficient number, since it is larger than the sum of its proper divisors (1902163).

145202501 is an equidigital number, since it uses as much as digits as its factorization.

145202501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145202501 is about 12050.0000414938. Note that the first 4 decimals coincide. The cubic root of 145202501 is about 525.6032382690.

The spelling of 145202501 in words is "one hundred forty-five million, two hundred two thousand, five hundred one".