145012744 has 8 divisors (see below), whose sum is σ = 271898910. Its totient is φ = 72506368.

The previous prime is 145012741. The next prime is 145012759. The reversal of 145012744 is 447210541.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 65124900 = 8938^2 + 8070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (145012741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9063289 + ... + 9063304.

Almost surely, 2^145012744 is an apocalyptic number.

It is an amenable number.

145012744 is a deficient number, since it is larger than the sum of its proper divisors (126886166).

145012744 is a wasteful number, since it uses less digits than its factorization.

145012744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126599 (or 18126595 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 145012744 is about 12042.1237329634. The cubic root of 145012744 is about 525.3741779993.

The spelling of 145012744 in words is "one hundred forty-five million, twelve thousand, seven hundred forty-four".