145452434 has 16 divisors (see below), whose sum is σ = 227293440. Its totient is φ = 69731280.

The previous prime is 145452409. The next prime is 145452443. The reversal of 145452434 is 434254541.

145452434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145452434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004 + ... + 17519.

It is an arithmetic number, because the mean of its divisors is an integer number (14205840).

Almost surely, 2^145452434 is an apocalyptic number.

145452434 is a deficient number, since it is larger than the sum of its proper divisors (81841006).

145452434 is a wasteful number, since it uses less digits than its factorization.

145452434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21665.

The product of its digits is 38400, while the sum is 32.

The square root of 145452434 is about 12060.3662465118. The cubic root of 145452434 is about 525.9046341202.

The spelling of 145452434 in words is "one hundred forty-five million, four hundred fifty-two thousand, four hundred thirty-four".