145622655 has 48 divisors (see below), whose sum is σ = 262778880. Its totient is φ = 74520000.

The previous prime is 145622647. The next prime is 145622657. The reversal of 145622655 is 556226541.

It is not a de Polignac number, because 145622655 - 2³ = 145622647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145622657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193530 + ... + 194280.

It is an arithmetic number, because the mean of its divisors is an integer number (5474560).

Almost surely, 2^145622655 is an apocalyptic number.

145622655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145622655 is a deficient number, since it is larger than the sum of its proper divisors (117156225).

145622655 is a wasteful number, since it uses less digits than its factorization.

145622655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 929 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 145622655 is about 12067.4212241058. The cubic root of 145622655 is about 526.1097071501.

The spelling of 145622655 in words is "one hundred forty-five million, six hundred twenty-two thousand, six hundred fifty-five".