145462246 has 4 divisors (see below), whose sum is σ = 218193372. Its totient is φ = 72731122.

The previous prime is 145462243. The next prime is 145462259. The reversal of 145462246 is 642264541.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145462246² = 42318530022729032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145462243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36365560 + ... + 36365563.

It is an arithmetic number, because the mean of its divisors is an integer number (54548343).

Almost surely, 2^145462246 is an apocalyptic number.

145462246 is a deficient number, since it is larger than the sum of its proper divisors (72731126).

145462246 is an equidigital number, since it uses as much as digits as its factorization.

145462246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72731125.

The product of its digits is 46080, while the sum is 34.

The square root of 145462246 is about 12060.7730266347. The cubic root of 145462246 is about 525.9164594299.

The spelling of 145462246 in words is "one hundred forty-five million, four hundred sixty-two thousand, two hundred forty-six".