145299045 has 16 divisors (see below), whose sum is σ = 234653760. Its totient is φ = 76767744.

The previous prime is 145299029. The next prime is 145299047. The reversal of 145299045 is 540992541.

It is not a de Polignac number, because 145299045 - 2⁴ = 145299029 is a prime.

It is a super-2 number, since 2×145299045² = 42223624955824050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145298994 and 145299012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145299047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43660 + ... + 46869.

It is an arithmetic number, because the mean of its divisors is an integer number (14665860).

Almost surely, 2^145299045 is an apocalyptic number.

145299045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145299045 is a deficient number, since it is larger than the sum of its proper divisors (89354715).

145299045 is a wasteful number, since it uses less digits than its factorization.

145299045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90644.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 145299045 is about 12054.0053509197. The cubic root of 145299045 is about 525.7197022794.

The spelling of 145299045 in words is "one hundred forty-five million, two hundred ninety-nine thousand, forty-five".