145284901 has 8 divisors (see below), whose sum is σ = 146874200. Its totient is φ = 143700480.

The previous prime is 145284889. The next prime is 145284913. The reversal of 145284901 is 109482541.

It is a happy number.

145284901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145284889) and next prime (145284913).

It can be written as a sum of positive squares in 4 ways, for example, as 53144100 + 92140801 = 7290^2 + 9599^2 .

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 145284901 - 2²³ = 136896293 is a prime.

It is a super-2 number, since 2×145284901² = 42215404917159602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145284991) 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, 109321 + ... + 110641.

It is an arithmetic number, because the mean of its divisors is an integer number (18359275).

Almost surely, 2^145284901 is an apocalyptic number.

It is an amenable number.

145284901 is a deficient number, since it is larger than the sum of its proper divisors (1589299).

145284901 is a wasteful number, since it uses less digits than its factorization.

145284901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 145284901 is about 12053.4186436878. The cubic root of 145284901 is about 525.7026431612.

The spelling of 145284901 in words is "one hundred forty-five million, two hundred eighty-four thousand, nine hundred one".