145470745 has 32 divisors (see below), whose sum is σ = 219156480. Its totient is φ = 90383040.

The previous prime is 145470739. The next prime is 145470761. The reversal of 145470745 is 547074541.

145470745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145470745 - 2³ = 145470737 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10540 + ... + 20050.

It is an arithmetic number, because the mean of its divisors is an integer number (6848640).

Almost surely, 2^145470745 is an apocalyptic number.

It is an amenable number.

145470745 is a deficient number, since it is larger than the sum of its proper divisors (73685735).

145470745 is a wasteful number, since it uses less digits than its factorization.

145470745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 145470745 is about 12061.1253620879. The cubic root of 145470745 is about 525.9267018973.

The spelling of 145470745 in words is "one hundred forty-five million, four hundred seventy thousand, seven hundred forty-five".