145402236 has 96 divisors (see below), whose sum is σ = 441423360. Its totient is φ = 40521600.

The previous prime is 145402217. The next prime is 145402273. The reversal of 145402236 is 632204541.

145402236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145402236² = 42283620467599392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28651 + ... + 33341.

It is an arithmetic number, because the mean of its divisors is an integer number (4598160).

Almost surely, 2^145402236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145402236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220711680).

145402236 is an abundant number, since it is smaller than the sum of its proper divisors (296021124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145402236 is a wasteful number, since it uses less digits than its factorization.

145402236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4744 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 145402236 is about 12058.2849526788. The cubic root of 145402236 is about 525.8441277456.

Adding to 145402236 its reverse (632204541), we get a palindrome (777606777).

The spelling of 145402236 in words is "one hundred forty-five million, four hundred two thousand, two hundred thirty-six".