145162290 has 64 divisors (see below), whose sum is σ = 428795136. Its totient is φ = 30627072.

The previous prime is 145162289. The next prime is 145162291. The reversal of 145162290 is 92261541.

It is an interprime number because it is at equal distance from previous prime (145162289) and next prime (145162291).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (145162291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23857 + ... + 29316.

It is an arithmetic number, because the mean of its divisors is an integer number (6699924).

Almost surely, 2^145162290 is an apocalyptic number.

145162290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145162290 is an abundant number, since it is smaller than the sum of its proper divisors (283632846).

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

145162290 is a wasteful number, since it uses less digits than its factorization.

145162290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53203.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 145162290 is about 12048.3314197444. The cubic root of 145162290 is about 525.5547152684.

The spelling of 145162290 in words is "one hundred forty-five million, one hundred sixty-two thousand, two hundred ninety".