145214656 has 14 divisors (see below), whose sum is σ = 288160460. Its totient is φ = 72607296.

The previous prime is 145214651. The next prime is 145214659. The reversal of 145214656 is 656412541.

It is not an unprimeable number, because it can be changed into a prime (145214651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134426 + ... + 1134553.

It is an arithmetic number, because the mean of its divisors is an integer number (20582890).

Almost surely, 2^145214656 is an apocalyptic number.

145214656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145214656 is a deficient number, since it is larger than the sum of its proper divisors (142945804).

145214656 is an equidigital number, since it uses as much as digits as its factorization.

145214656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268991 (or 2268981 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 145214656 is about 12050.5043877839. The cubic root of 145214656 is about 525.6179040611.

The spelling of 145214656 in words is "one hundred forty-five million, two hundred fourteen thousand, six hundred fifty-six".