145423208 has 32 divisors (see below), whose sum is σ = 312038400. Its totient is φ = 62240832.

The previous prime is 145423199. The next prime is 145423249. The reversal of 145423208 is 802324541.

It is a happy number.

It is a super-2 number, since 2×145423208² = 42295818850022528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59678 + ... + 62066.

It is an arithmetic number, because the mean of its divisors is an integer number (9751200).

Almost surely, 2^145423208 is an apocalyptic number.

It is an amenable number.

145423208 is an abundant number, since it is smaller than the sum of its proper divisors (166615192).

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

145423208 is a wasteful number, since it uses less digits than its factorization.

145423208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3485 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 145423208 is about 12059.1545308948. The cubic root of 145423208 is about 525.8694081292.

Adding to 145423208 its reverse (802324541), we get a palindrome (947747749).

The spelling of 145423208 in words is "one hundred forty-five million, four hundred twenty-three thousand, two hundred eight".