145638956 has 12 divisors (see below), whose sum is σ = 261756768. Its totient is φ = 70851312.

The previous prime is 145638943. The next prime is 145638959. The reversal of 145638956 is 659836541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145638956.

It is not an unprimeable number, because it can be changed into a prime (145638959) 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, 491876 + ... + 492171.

It is an arithmetic number, because the mean of its divisors is an integer number (21813064).

Almost surely, 2^145638956 is an apocalyptic number.

It is an amenable number.

145638956 is a deficient number, since it is larger than the sum of its proper divisors (116117812).

145638956 is a wasteful number, since it uses less digits than its factorization.

145638956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984088 (or 984086 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 145638956 is about 12068.0966187713. The cubic root of 145638956 is about 526.1293373246.

The spelling of 145638956 in words is "one hundred forty-five million, six hundred thirty-eight thousand, nine hundred fifty-six".