145367220 has 48 divisors (see below), whose sum is σ = 413114688. Its totient is φ = 38184960.

The previous prime is 145367213. The next prime is 145367239. The reversal of 145367220 is 22763541.

It is a super-2 number, since 2×145367220² = 42263257301056800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14061 + ... + 22100.

It is an arithmetic number, because the mean of its divisors is an integer number (8606556).

Almost surely, 2^145367220 is an apocalyptic number.

145367220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145367220 is an abundant number, since it is smaller than the sum of its proper divisors (267747468).

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

145367220 is a wasteful number, since it uses less digits than its factorization.

145367220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36240 (or 36238 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 145367220 is about 12056.8329174788. The cubic root of 145367220 is about 525.8019128142.

The spelling of 145367220 in words is "one hundred forty-five million, three hundred sixty-seven thousand, two hundred twenty".