145232451506 has 8 divisors (see below), whose sum is σ = 220916968704. Its totient is φ = 71593461940.

The previous prime is 145232451493. The next prime is 145232451527. The reversal of 145232451506 is 605154232541.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145232451506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511381730 + ... + 511382013.

It is an arithmetic number, because the mean of its divisors is an integer number (27614621088).

Almost surely, 2^145232451506 is an apocalyptic number.

145232451506 is a deficient number, since it is larger than the sum of its proper divisors (75684517198).

145232451506 is a wasteful number, since it uses less digits than its factorization.

145232451506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022763816.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 145232451506 in words is "one hundred forty-five billion, two hundred thirty-two million, four hundred fifty-one thousand, five hundred six".