145402106 has 4 divisors (see below), whose sum is σ = 218103162. Its totient is φ = 72701052.

The previous prime is 145402093. The next prime is 145402109. The reversal of 145402106 is 601204541.

145402106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 132043081 + 13359025 = 11491^2 + 3655^2 .

It is a super-2 number, since 2×145402106² = 42283544858470472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145402109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36350525 + ... + 36350528.

Almost surely, 2^145402106 is an apocalyptic number.

145402106 is a deficient number, since it is larger than the sum of its proper divisors (72701056).

145402106 is an equidigital number, since it uses as much as digits as its factorization.

145402106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72701055.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 145402106 is about 12058.2795621929. The cubic root of 145402106 is about 525.8439710315.

Adding to 145402106 its reverse (601204541), we get a palindrome (746606647).

The spelling of 145402106 in words is "one hundred forty-five million, four hundred two thousand, one hundred six".