145037745 has 12 divisors (see below), whose sum is σ = 251398836. Its totient is φ = 77353440.

The previous prime is 145037713. The next prime is 145037749. The reversal of 145037745 is 547730541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35856144 + 109181601 = 5988^2 + 10449^2 .

It is not a de Polignac number, because 145037745 - 2⁵ = 145037713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145037749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1611486 + ... + 1611575.

It is an arithmetic number, because the mean of its divisors is an integer number (20949903).

Almost surely, 2^145037745 is an apocalyptic number.

145037745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145037745 is a deficient number, since it is larger than the sum of its proper divisors (106361091).

145037745 is a wasteful number, since it uses less digits than its factorization.

145037745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223072 (or 3223069 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 145037745 is about 12043.1617526296. The cubic root of 145037745 is about 525.4043687368.

The spelling of 145037745 in words is "one hundred forty-five million, thirty-seven thousand, seven hundred forty-five".