145303534 has 4 divisors (see below), whose sum is σ = 217955304. Its totient is φ = 72651766.

The previous prime is 145303531. The next prime is 145303537. The reversal of 145303534 is 435303541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435303541 = 647 ⋅672803.

It is an interprime number because it is at equal distance from previous prime (145303531) and next prime (145303537).

It is a super-2 number, since 2×145303534² = 42226233985778312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145303531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36325882 + ... + 36325885.

It is an arithmetic number, because the mean of its divisors is an integer number (54488826).

Almost surely, 2^145303534 is an apocalyptic number.

145303534 is a deficient number, since it is larger than the sum of its proper divisors (72651770).

145303534 is an equidigital number, since it uses as much as digits as its factorization.

145303534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72651769.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 145303534 is about 12054.1915531486. The cubic root of 145303534 is about 525.7251162435.

The spelling of 145303534 in words is "one hundred forty-five million, three hundred three thousand, five hundred thirty-four".