145522246 has 16 divisors (see below), whose sum is σ = 230123520. Its totient is φ = 68914440.

The previous prime is 145522231. The next prime is 145522283. The reversal of 145522246 is 642225541.

145522246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 22056 + ... + 27883.

It is an arithmetic number, because the mean of its divisors is an integer number (14382720).

Almost surely, 2^145522246 is an apocalyptic number.

145522246 is a deficient number, since it is larger than the sum of its proper divisors (84601274).

145522246 is a wasteful number, since it uses less digits than its factorization.

145522246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50019.

The product of its digits is 19200, while the sum is 31.

The square root of 145522246 is about 12063.2601729383. The cubic root of 145522246 is about 525.9887591751.

Adding to 145522246 its reverse (642225541), we get a palindrome (787747787).

The spelling of 145522246 in words is "one hundred forty-five million, five hundred twenty-two thousand, two hundred forty-six".