145511622 has 12 divisors (see below), whose sum is σ = 315275220. Its totient is φ = 48503868.

The previous prime is 145511599. The next prime is 145511623. The reversal of 145511622 is 226115541.

145511622 is a `hidden beast` number, since 145 + 511 + 6 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145511623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4041972 + ... + 4042007.

It is an arithmetic number, because the mean of its divisors is an integer number (26272935).

Almost surely, 2^145511622 is an apocalyptic number.

145511622 is an abundant number, since it is smaller than the sum of its proper divisors (169763598).

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

145511622 is a wasteful number, since it uses less digits than its factorization.

145511622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083987 (or 8083984 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 145511622 is about 12062.8198195944. The cubic root of 145511622 is about 525.9759587483.

The spelling of 145511622 in words is "one hundred forty-five million, five hundred eleven thousand, six hundred twenty-two".