145506634 has 48 divisors (see below), whose sum is σ = 273533760. Its totient is φ = 56833920.

The previous prime is 145506589. The next prime is 145506661. The reversal of 145506634 is 436605541.

It is a self number, because there is not a number n which added to its sum of digits gives 145506634.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210229 + ... + 210919.

It is an arithmetic number, because the mean of its divisors is an integer number (5698620).

Almost surely, 2^145506634 is an apocalyptic number.

145506634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145506634 is a deficient number, since it is larger than the sum of its proper divisors (128027126).

145506634 is a wasteful number, since it uses less digits than its factorization.

145506634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 145506634 is about 12062.6130668276. The cubic root of 145506634 is about 525.9699486945.

The spelling of 145506634 in words is "one hundred forty-five million, five hundred six thousand, six hundred thirty-four".