145650648 has 192 divisors, whose sum is σ = 453841920. Its totient is φ = 38361600.

The previous prime is 145650623. The next prime is 145650653. The reversal of 145650648 is 846056541.

It is a happy number.

It is a super-2 number, since 2×145650648² = 42428222525639808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3936486 + ... + 3936522.

It is an arithmetic number, because the mean of its divisors is an integer number (2363760).

Almost surely, 2^145650648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145650648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226920960).

145650648 is an abundant number, since it is smaller than the sum of its proper divisors (308191272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145650648 is a wasteful number, since it uses less digits than its factorization.

145650648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 145650648 is about 12068.5810267819. The cubic root of 145650648 is about 526.1434162948.

The spelling of 145650648 in words is "one hundred forty-five million, six hundred fifty thousand, six hundred forty-eight".