145621202 has 8 divisors (see below), whose sum is σ = 219564156. Its totient is φ = 72433152.

The previous prime is 145621183. The next prime is 145621237. The reversal of 145621202 is 202126541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 140873161 + 4748041 = 11869^2 + 2179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188243 + ... + 189014.

Almost surely, 2^145621202 is an apocalyptic number.

145621202 is a deficient number, since it is larger than the sum of its proper divisors (73942954).

145621202 is a wasteful number, since it uses less digits than its factorization.

145621202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377452.

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

The square root of 145621202 is about 12067.3610205380. The cubic root of 145621202 is about 526.1079573309.

Adding to 145621202 its reverse (202126541), we get a palindrome (347747743).

The spelling of 145621202 in words is "one hundred forty-five million, six hundred twenty-one thousand, two hundred two".