145231534 has 8 divisors (see below), whose sum is σ = 248968368. Its totient is φ = 62242080.

The previous prime is 145231531. The next prime is 145231543. The reversal of 145231534 is 435132541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145231531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5186827 + ... + 5186854.

It is an arithmetic number, because the mean of its divisors is an integer number (31121046).

Almost surely, 2^145231534 is an apocalyptic number.

145231534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145231534 is a deficient number, since it is larger than the sum of its proper divisors (103736834).

145231534 is a wasteful number, since it uses less digits than its factorization.

145231534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373690.

The product of its digits is 7200, while the sum is 28.

The square root of 145231534 is about 12051.2046700734. The cubic root of 145231534 is about 525.6382671006.

The spelling of 145231534 in words is "one hundred forty-five million, two hundred thirty-one thousand, five hundred thirty-four".