145218622 has 16 divisors (see below), whose sum is σ = 223248960. Its totient is φ = 70818592.

The previous prime is 145218571. The next prime is 145218649. The reversal of 145218622 is 226812541.

It is a super-3 number, since 3×145218622³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 14379 + ... + 22297.

It is an arithmetic number, because the mean of its divisors is an integer number (13953060).

Almost surely, 2^145218622 is an apocalyptic number.

145218622 is a deficient number, since it is larger than the sum of its proper divisors (78030338).

145218622 is a wasteful number, since it uses less digits than its factorization.

145218622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8147.

The product of its digits is 7680, while the sum is 31.

The square root of 145218622 is about 12050.6689440877. The cubic root of 145218622 is about 525.6226891191.

The spelling of 145218622 in words is "one hundred forty-five million, two hundred eighteen thousand, six hundred twenty-two".