145243556 has 12 divisors (see below), whose sum is σ = 262375680. Its totient is φ = 70279080.

The previous prime is 145243547. The next prime is 145243559. The reversal of 145243556 is 655342541.

It is not an unprimeable number, because it can be changed into a prime (145243559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585536 + ... + 585783.

It is an arithmetic number, because the mean of its divisors is an integer number (21864640).

Almost surely, 2^145243556 is an apocalyptic number.

It is an amenable number.

145243556 is a deficient number, since it is larger than the sum of its proper divisors (117132124).

145243556 is a wasteful number, since it uses less digits than its factorization.

145243556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171354 (or 1171352 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The square root of 145243556 is about 12051.7034480608. The cubic root of 145243556 is about 525.6527704909.

The spelling of 145243556 in words is "one hundred forty-five million, two hundred forty-three thousand, five hundred fifty-six".