145214534 has 4 divisors (see below), whose sum is σ = 217821804. Its totient is φ = 72607266.

The previous prime is 145214533. The next prime is 145214543. The reversal of 145214534 is 435412541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435412541 = 71 ⋅6132571.

It is a junction number, because it is equal to n+sod(n) for n = 145214497 and 145214506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145214533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36303632 + ... + 36303635.

It is an arithmetic number, because the mean of its divisors is an integer number (54455451).

Almost surely, 2^145214534 is an apocalyptic number.

145214534 is a deficient number, since it is larger than the sum of its proper divisors (72607270).

145214534 is an equidigital number, since it uses as much as digits as its factorization.

145214534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72607269.

The product of its digits is 9600, while the sum is 29.

The square root of 145214534 is about 12050.4993257541. The cubic root of 145214534 is about 525.6177568643.

The spelling of 145214534 in words is "one hundred forty-five million, two hundred fourteen thousand, five hundred thirty-four".