145402133 has 2 divisors, whose sum is σ = 145402134. Its totient is φ = 145402132.

The previous prime is 145402123. The next prime is 145402151. The reversal of 145402133 is 331204541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86527204 + 58874929 = 9302^2 + 7673^2 .

It is a cyclic number.

It is not a de Polignac number, because 145402133 - 2¹² = 145398037 is a prime.

It is a super-2 number, since 2×145402133² = 42283560561899378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145402099 and 145402108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145402123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72701066 + 72701067.

It is an arithmetic number, because the mean of its divisors is an integer number (72701067).

Almost surely, 2^145402133 is an apocalyptic number.

It is an amenable number.

145402133 is a deficient number, since it is larger than the sum of its proper divisors (1).

145402133 is an equidigital number, since it uses as much as digits as its factorization.

145402133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 145402133 is about 12058.2806817556. The cubic root of 145402133 is about 525.8440035798.

Adding to 145402133 its reverse (331204541), we get a palindrome (476606674).

The spelling of 145402133 in words is "one hundred forty-five million, four hundred two thousand, one hundred thirty-three".