145344502 has 4 divisors (see below), whose sum is σ = 218016756. Its totient is φ = 72672250.

The previous prime is 145344481. The next prime is 145344503. The reversal of 145344502 is 205443541.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145344502² = 42250048523256008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145344503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336124 + ... + 36336127.

It is an arithmetic number, because the mean of its divisors is an integer number (54504189).

Almost surely, 2^145344502 is an apocalyptic number.

145344502 is a deficient number, since it is larger than the sum of its proper divisors (72672254).

145344502 is an equidigital number, since it uses as much as digits as its factorization.

145344502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72672253.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 145344502 is about 12055.8907592927. The cubic root of 145344502 is about 525.7745205998.

The spelling of 145344502 in words is "one hundred forty-five million, three hundred forty-four thousand, five hundred two".